Date: Mar 5th 2011 Saturday
Observation Time: 7pm to 11:30pm (observing time ~3:30 hrs),
Location: Jon's Home, Boulevard, CA
Weather: not great.. partly cloudy so looking thru patches. No wind. Seeing wasn't great 5/10.
Instruments: Jon's new 25" f/5 Obsession telescope
Buddies: Jon & Ashwin
Lot of new things to begin with for this observing session.
- Jon's new 25" obsession scope. Its massive. Need to climb 8 foot ladder to observe at zenith.
- First session of 2011
- Welcome Gogol session.
- Finished all 110 messier objects.. not in one night, but in 3 years period :). All messier objects are observed atleast once now. It was sort of 3-year messier marathon.
Ashwin joined for this session, first time at Jon's place.
Recently Jon purchased 25" obsession telescope. It is a used telescope and has a chip on the back side of the mirror. Jon got an excellent deal for the scope without much compromise. Its obsession scope #511.
Irrespective of the massive size, the scope movement is very smooth from the top of the ladder. It shows really nice views.
Mirror: 25"
Focal Length : f/5 3110mm. With parracor : ~3658mm
So now a 31mm Nagler low mag eyepiece from 16" scope, suddenly gives 100x view in 25" scope. Its not low mag eyepiece anymore.
Can clearly show 500x zooming with sharp images. Can easily go to 800x with decent views.
The Collimation took longer than expected. Jon is still getting familiar with the movement of secondary mirror screws. Primary alignment was quick. Also, the collimation stayed fine whole observing session. Considering the amount of scope movement, its indeed stable.
For such a big scope, generally it makses sense to observe all the objects in the vicinity and then to move on to the next location in the sky. But becasue of clouds, we ended up jumping from one location to opposite one and moved the scope and ladder a lot. We ended up doing ~10-15 circles/360deg rotations with the scope, during the night. Still, I am listing the objects per constellation and with the flow of the observing sessions.
Perseus
========
M76 - little dumbbell nebula: Started the night with M76. not a object that will impress immediately, but details on M76 was nice. Can clearly see two lobes, sort of in hourglass shape. The brightness was enough. Considering mirror cool-down time and cloudy weather, it indeed showed more than enough details on the object.
Orion
=======
M42 - M43 orion nebula : Switched to Orion M42 masterpiece. In 31 Nagler @ 118x, the eyepiece was fully covered under the nebula. the saucer, the pillar and the trapezoid was fabulous. Very bright. More you look at it, can feel the depth.. Had3D effect. Trapezoid clearly shows 6 stars. Double speed focuser indeed gives pinpoint stars of #5 and #6 in trapezoid. With 20mm Nagler @ 182x, magnifies it to the dark pillar. In contrast, the trapezoid and the illumination of the gas around it was very bright. Because of bright nebulousity all around and the central pillar being so dark, sort of looses the typical shape. M43 itself shows lot of bright nebulosity. Talked about running man nebula nearby, but wasn't sure about the location. Next time TBD.
M78 - The nebulosity pops up because of bigger aperture. A Bright star in the view. Hard to remember, because of lack of discernible shape, but definitely filled ~10% of the eyepiece.
Rigel - Visited Rigel multiple times in the night. At 118x can clearly see the companion. Rigel was sharp, but the companion wasn't.. tried to focus, but it still seemed like blurry disk. companion ~9.8" separation. Very close to Rigel. Later visted it again with ~400x. This is to compare with Sirius. Just wanted to get a judgment on how 10" separation looks like at ~400x.
Canis Major
============
M46-47 : with 20 Nagler, at 182x, the hwole view was filled with bright stars of M46. In reality, M46 has fainter stars than M47, but with large aperture of 25" makes M46 such a bright object. the planetory nebula is in the view on the right-bottom side. A faint star at the center of it is visible. not sure if its part of the cluster or the planetory star itself. At 182x, M47 is infact dull object, though it has bright stars its really sparse object. Hence nothing impressive in their. With 31 Nagler, 118x, both objects never fit in the same view and hence the beauty of observing both in wide-view is sort of lost. but 31 nagler still shows M46 as an impressive object.
M93 - This was yet another OC.
NGC 2467 - object opposite to M93. - The nebulosity in the object is very distinct in the big aperture. Sort of big C shaped nebulosity. Next to it is the Open cluster in V shape, similar to Taurus.
Sirius - Tried splitting Sirius. Difficult part here is Sirius is too bright compared to the companion and hence very difficult to observe the companion. Also its only 10" seconds apart. Only thing I knew tabout it is that its following sirius. Hence i kept Sirius barely out of the view and tried to look for the companion, but it was hard. Sirius light rays were causing trouble. Secondly wasn't sure how much 10" distance seems at 400x. So thought that another faint star is its companion. To get the judgment on 10" separation in 400x, tried Rigel. that proved that the faint star i was looking at was wrong. 10" is still too close in 400x. FAILED to observe the companion. Need better seeing/stability for this one.
Beta Monoceros - Observed the triplet, during the last session of observing. Triplet system with a tight bright pair. No colors, all three were yellow.
Ursa Major
===========
M81-M82 : M81 seemed like a big elliptical fuzzy object. Very bright. But M82 was more impressive, with distinct edge-on and some motteling on it at the center in Y axis.
M51 : Visited M51 probably 3 times during the night. The object moved from horizon - 5deg to -30-45 deg in 3 hrs. In the last session, the details on the object were clear, Can easily trace the spiral structure fomr the center to the connecting NGC galaxy. Actual Connector betn both of them was not visible. Some Nebulas or brighter regions in the spiral of M51 were visible. Don't remember the exact location of these regions. More eyepiece time + dark adaptation, gives more details on this object. Definitely saw more details on M51 visually for first time.
M101 : The brighter part at the core is visible. Jon mentioned that this is a big object and can not fit in the view itself.. I didn't see much in this one except the fuzziness at the core.
Canes Venatici
===============
Galaxy Quintet near M51 - Hickson 68 - NGC 5354 + 4 more : This is actualy in CVn and not in UMa. Jon pointed to this one.. Seemed like typical Jon object :). Very faint galaxy group, made up of 5 galaxies. Two of them were (relatively) bright, while remaining were barely visible. Very faint. The brighter NGC 5354 is of mag +11.38, while the lowest one on the left NGC-5358 is of 14.57. this is just to know that Jon's scope goes till +15 mag, without much trouble. Have I seen this one before? (YES, I have. check older observations)
Continued..
Showing posts with label UMa Gal M101 Pinwheel. Show all posts
Showing posts with label UMa Gal M101 Pinwheel. Show all posts
Sunday, March 6, 2011
Being Obsessive.. Part I
Sunday, May 16, 2010
Fuzzies Everywhere - III
Continued..
During this time, I started with Leo fuzzies. With low mag 35 pan @ 35x can clearly see 2903. Its indeed small but still bright.
Leo Triplet 3193 ben Gamma and ?? star.
Leo Gamma doublet, Again i looked at wrong location (inside the sickle) on this one. Its outside the sickle towards the body. Its on eastern side of Gamma Leo. Can easily see it thru my 10" scope 17T4 combo.
While looking for M95-M96-M105 triplet, i accidentally ended up at k-leo galaxies. They seem lil different than what i have seen thru Jon's scope.. two of them were really bright (i.e. 3367 and 3377), didn't see any other.. Again after relocating I got 95-96-105 triplet.. triplet within 105 was also visible. and thru that was able to move to k-leo gals also.
When moved to M65-M66-3628 combo, M95 triplet is definitely separated more than m65 triplet.. my expectations from m65 were really high being brighter, but din't get any impressive view thru my scope 17T4 70x. Mentioned it to Jon, if seeing/transparency is okay.
Checked for 3607. In 17T4 @ 70x can clearly see 3607-3608 pair. 3605 was also not clearly visible.. required lil higher mags. I believe I also looked at 3599 (New) nearby, thru jon's and my scope.
Jon was tired of fuzzies, so he moved to Saggi and Scorpio, while i continued my fuzzy hunt with Ursa Major.
Started hunting fuzzies in UMa systematically star-by-star.
From Alpha UMa - 1st star - Dubhe:
M81-M82 - indeed marvelous with low mags and high mags. With 17T4 @ 35x can also clearly see two nearby ngc objects. M81 being at center, M82, ngc3077 (new) and ngc 2976 (new) forms perfect Y shape prongs. 3077 is way smaller than 2976. Infact data sheet shows that, though smaller, 3077 is a magnitude brighter than 2976.
Near Beta UMa - second star - Merak:
M97-M108 - Fits in same view (17T4 ??) M97 brighter and more bluish than m108.. m108 seemed to be edge-on type. Nearby NGC 3631 (New) is also an easy catch. Moving from 108-97 in direct straight line or from finder to a nearby bright star HR 4363 helps.
Near Gamma UMa - third star :
M109: don't remember much..seems like it has bright core (??).. missed the nearby ngc object.
M106 - Opposite to alignment of M81-82-Alpha-Gamma stars, lies 106 towards CVn. Observed ngc 4490 near Alpha Cvn. Dont remember much. switched to M106, which is at exact center of Alpha Cvn and Gamma UMa. seems visible thru finder.. M106 seems to have brighter core.. nearby satellite ngc object clearly visible thru jon's scope.. must be 4217 (New) (or 4248 ??)... hardly visible in my 10" scope 17T4 @ 70x..requires more magnification.
Had a quick glance at M63 and M94. just saw so many galaxies that don't even remember much in t details.. need to spend some time on these objects with higher mags.
M51 whirlpool: marvelous view of the pair. Can clearly see the spiral lanes. More time i spend on this one, more details pop up in the eye. In M51 seemes like brighter star-like spot on the spiral arm. NGC-M51-Brighter star like spot. Need to read more abt this one. ???
M101 : closer to 7th UMa star. M51 is on southern-easter side of this tar, while this one is on northen easter side. almost at the same distance. don't remember much.. just too many fuzzies for one night. It needs to be observed with high mag ???
Continued..
During this time, I started with Leo fuzzies. With low mag 35 pan @ 35x can clearly see 2903. Its indeed small but still bright.
Leo Triplet 3193 ben Gamma and ?? star.
Leo Gamma doublet, Again i looked at wrong location (inside the sickle) on this one. Its outside the sickle towards the body. Its on eastern side of Gamma Leo. Can easily see it thru my 10" scope 17T4 combo.
While looking for M95-M96-M105 triplet, i accidentally ended up at k-leo galaxies. They seem lil different than what i have seen thru Jon's scope.. two of them were really bright (i.e. 3367 and 3377), didn't see any other.. Again after relocating I got 95-96-105 triplet.. triplet within 105 was also visible. and thru that was able to move to k-leo gals also.
When moved to M65-M66-3628 combo, M95 triplet is definitely separated more than m65 triplet.. my expectations from m65 were really high being brighter, but din't get any impressive view thru my scope 17T4 70x. Mentioned it to Jon, if seeing/transparency is okay.
Checked for 3607. In 17T4 @ 70x can clearly see 3607-3608 pair. 3605 was also not clearly visible.. required lil higher mags. I believe I also looked at 3599 (New) nearby, thru jon's and my scope.
Jon was tired of fuzzies, so he moved to Saggi and Scorpio, while i continued my fuzzy hunt with Ursa Major.
Started hunting fuzzies in UMa systematically star-by-star.
From Alpha UMa - 1st star - Dubhe:
M81-M82 - indeed marvelous with low mags and high mags. With 17T4 @ 35x can also clearly see two nearby ngc objects. M81 being at center, M82, ngc3077 (new) and ngc 2976 (new) forms perfect Y shape prongs. 3077 is way smaller than 2976. Infact data sheet shows that, though smaller, 3077 is a magnitude brighter than 2976.
Near Beta UMa - second star - Merak:
M97-M108 - Fits in same view (17T4 ??) M97 brighter and more bluish than m108.. m108 seemed to be edge-on type. Nearby NGC 3631 (New) is also an easy catch. Moving from 108-97 in direct straight line or from finder to a nearby bright star HR 4363 helps.
Near Gamma UMa - third star :
M109: don't remember much..seems like it has bright core (??).. missed the nearby ngc object.
M106 - Opposite to alignment of M81-82-Alpha-Gamma stars, lies 106 towards CVn. Observed ngc 4490 near Alpha Cvn. Dont remember much. switched to M106, which is at exact center of Alpha Cvn and Gamma UMa. seems visible thru finder.. M106 seems to have brighter core.. nearby satellite ngc object clearly visible thru jon's scope.. must be 4217 (New) (or 4248 ??)... hardly visible in my 10" scope 17T4 @ 70x..requires more magnification.
Had a quick glance at M63 and M94. just saw so many galaxies that don't even remember much in t details.. need to spend some time on these objects with higher mags.
M51 whirlpool: marvelous view of the pair. Can clearly see the spiral lanes. More time i spend on this one, more details pop up in the eye. In M51 seemes like brighter star-like spot on the spiral arm. NGC-M51-Brighter star like spot. Need to read more abt this one. ???
M101 : closer to 7th UMa star. M51 is on southern-easter side of this tar, while this one is on northen easter side. almost at the same distance. don't remember much.. just too many fuzzies for one night. It needs to be observed with high mag ???
Continued..
Labels:
CVn Gal 4217,
CVn Gal M106,
CVn Gal M51 Whirlpool,
CVn Gal M63 Sunflower,
CVn Gal M94,
Leo Gal Triplet 3193-3190-3187,
Leo Gal 2903,
Leo Gal 3226-3227,
Leo Gal 3599,
Leo Gal 3607-3608-3605,
Leo Gal M65-M66-3628,
Leo Gal M95-M96-M105,
Leo Gal Triplet M105–3384-3389,
UMa Gal 3631,
UMa Gal M101 Pinwheel,
UMa Gal M108,
UMa Gal M109,
UMa Gal M81-M82,
UMa Gal M81-M82-3077-2976
Sunday, March 29, 2009
Messier Marathon - Part III
Continued..
Virgo-Coma Galactic Cluster: Jon showed me in 16.5' with 35mm Panoptic. Marvellous.. 9 galaxies in same view. 5 of them were pretty sharp. This is a galactic heaven. Don't know which objects I saw, but seemed like Markarain's chain. Wasn;t sure abt the location.
As per star atlas, started with epsilon virginis and must have gone towards M60-M59.. not sure.. tried to browse nearby.. but its easy to loose yourself easily in this galactic zoo. Star hopping in this area is real skill. Need to read more on this one. (TBD ??) .. but its unbelievable view. Can spend hours on this one.. and soon I will :)
In my 10', 42mm 30x view, looks good, but Jon let me borrow his 28mm UWAN with parracor. WOW !! no words !! The field of view 82deg rules ..keeps lot of galaxies in same view. with paracor, view was awesome.. but with parracor, every star is tack sharp. Also tried 22m Nagler.. Hssh !!
For rest of the night, i used Jon's 22m Nagler :) (50x) !!
- Ursa Major:
M81-M82 Bode's Nebulae: Easy catch, extending Alpha-Gamma line, towards pole. Bright pair, barely in 22mm. M81 vertical dust lane visible (??). In 16.5 impressive-bright view. Wish jon would have increased the mag.
- CVn:
M63 Sunflower: Bright and big, unexpectedly.
M51 whirlpool: Galaxy pair merge clearly visible. I guess because of nagler, they look so bright. Smaller than M63.
- Bootes:
M3 GC: Jon showed the location. Still tricky to find it. MArevellous globular.. bright-bluish. Probably can resolve some outer skirt stars with 22m.. high mag required.
- Coma:
M53 GC (New): Identifying Coma constellation was headache. but once found alpha, M53 is an easy catch. Beautiful GC. Smaller than M3.
M64 Black Eye (New): Yet another.. but easy to find.
Seems like i was too tired... just too many fuzzies for one night :) !!
- Ursa Major:
M108 - M97: Both M97 Owl nebula and M108 fits in same view. Nebula is brighter than galaxy. galaxy seems elliptical.
M109: Yet another fuzzy, don't remember much.
M40 (New): Its double rather than any fuzzy. Messier mistake.
M101: Lil tricky, may get confused because of NGCs nearby. but big & bright.. feels up whole eyepiece.. this seemed to be of unusual shape.
- CVn:
M94: Easy to catch with star atlas. Yet another galaxy.
M106 (New): Failed.. too tired.. thought that saw it thru binos, but that can not be..its too faint for binos.
- Hercules:
M13 GC: Sort of in clouds. Still got it. Way bigger than M3 also.. too bright..but wasn;t clear..seeing was just too bad..
TBDs:
- Are we/milkyway part of Virgo galactic cluster?
- Field stop of an eyepiece
- Barlowed laser collimator
- T CMa
- Nagler-Panoptic eyepieces on 10"
- Trapezoid E-F stars: Seeing is better in TDS than KC
Lot of fuzzies while browsing thru the sky. Impressive to see how many "things" are there in the sky.
Virgo-Coma Galactic Cluster: Jon showed me in 16.5' with 35mm Panoptic. Marvellous.. 9 galaxies in same view. 5 of them were pretty sharp. This is a galactic heaven. Don't know which objects I saw, but seemed like Markarain's chain. Wasn;t sure abt the location.
As per star atlas, started with epsilon virginis and must have gone towards M60-M59.. not sure.. tried to browse nearby.. but its easy to loose yourself easily in this galactic zoo. Star hopping in this area is real skill. Need to read more on this one. (TBD ??) .. but its unbelievable view. Can spend hours on this one.. and soon I will :)
In my 10', 42mm 30x view, looks good, but Jon let me borrow his 28mm UWAN with parracor. WOW !! no words !! The field of view 82deg rules ..keeps lot of galaxies in same view. with paracor, view was awesome.. but with parracor, every star is tack sharp. Also tried 22m Nagler.. Hssh !!
For rest of the night, i used Jon's 22m Nagler :) (50x) !!
- Ursa Major:
M81-M82 Bode's Nebulae: Easy catch, extending Alpha-Gamma line, towards pole. Bright pair, barely in 22mm. M81 vertical dust lane visible (??). In 16.5 impressive-bright view. Wish jon would have increased the mag.
- CVn:
M63 Sunflower: Bright and big, unexpectedly.
M51 whirlpool: Galaxy pair merge clearly visible. I guess because of nagler, they look so bright. Smaller than M63.
- Bootes:
M3 GC: Jon showed the location. Still tricky to find it. MArevellous globular.. bright-bluish. Probably can resolve some outer skirt stars with 22m.. high mag required.
- Coma:
M53 GC (New): Identifying Coma constellation was headache. but once found alpha, M53 is an easy catch. Beautiful GC. Smaller than M3.
M64 Black Eye (New): Yet another.. but easy to find.
Seems like i was too tired... just too many fuzzies for one night :) !!
- Ursa Major:
M108 - M97: Both M97 Owl nebula and M108 fits in same view. Nebula is brighter than galaxy. galaxy seems elliptical.
M109: Yet another fuzzy, don't remember much.
M40 (New): Its double rather than any fuzzy. Messier mistake.
M101: Lil tricky, may get confused because of NGCs nearby. but big & bright.. feels up whole eyepiece.. this seemed to be of unusual shape.
- CVn:
M94: Easy to catch with star atlas. Yet another galaxy.
M106 (New): Failed.. too tired.. thought that saw it thru binos, but that can not be..its too faint for binos.
- Hercules:
M13 GC: Sort of in clouds. Still got it. Way bigger than M3 also.. too bright..but wasn;t clear..seeing was just too bad..
TBDs:
- Are we/milkyway part of Virgo galactic cluster?
- Field stop of an eyepiece
- Barlowed laser collimator
- T CMa
- Nagler-Panoptic eyepieces on 10"
- Trapezoid E-F stars: Seeing is better in TDS than KC
Lot of fuzzies while browsing thru the sky. Impressive to see how many "things" are there in the sky.
Labels:
Com Gal M64 BlackEye,
Com GC M53,
CVn Gal M106,
CVn Gal M51 Whirlpool,
CVn Gal M63 Sunflower,
CVn Gal M94,
CVn GC M3,
Her GC M13,
Location KC,
UMa Gal M101 Pinwheel,
UMa Gal M108,
UMa Gal M109,
UMa Gal M81-M82,
UMa OC M40 Winnecke4,
UMa PN M97 Owl,
Vir MarkarainsChain
Wednesday, October 29, 2008
SDAA BBQ Night - Part I
Date: 29th Sept 08, Saturday.
Observation Time:
Location: TDS, CA
Weather: Weather was excellent. Lil bit windy initially. but crisp clear
Instruments: My 10” dob & 10x50 binocs.
Buddies: Pete.
Total Objects: 17 (Incomplete)
New Objects: 13
Another great session at TDS. It was SDAA's annual BBQ party too. Had a hosting training session for the 22inch telescope.
Caught lot of new objects...
Initially, I wanted to cover all the M's near horizon.
M3 (New): Nicely aligned bten arcturus and canes venatici. Arc of arcturus and star above perfectly points to M3. Visible in binocs and finder 9x50. Really bright and widespread. core is tightly packed, but There seems to be branch of stars coming out if it. all stars resolvable in that branch in 9mm.
M5 (New): located Exactly opposite of M3. Easy to catch with serpens Caput last two stars. Binocular object. Tiny, tightly packed and fainter than M3.
M94 (New): Tiny galaxy in canes venatici. easy to catch. Seems to be tiny fuzzy, elliptical. It’s faint. Wonder how messier find this object.
M63 Sunflower Galaxy (New): Again easy catch. Edge on. lil bit brighter and bigger than M94. can not see any sunflower shape.
M101: really Fainter. Seems face on. still bigger than M63 or M94. On opposite side of M101. there is a galaxy triplet (IC #).
M51 Whirlpool galaxy: both galaxies clearly visible.. broken eight shape. no details visible in 32mm x 2x (16mm). I guess aperture is the key here.
M11 Wild duck cluster: Rich OC with thousands stars. It’s a failed globular cluster probably.One bright star at the center while a pair outside the cluster. Three dark regions making a triangle with each other. Can not see any stars in there. Can resolve almost all stars... cluster doesn't fit in 9mm eyepiece 135x.
Opphiuchus Clusters (New):
Browsed thru Opp. clusters. IC 4665 is indeed bright and beautiful in binocs. At 38x, fills whole eyepiece. 4-5 yellow stars. Not sure what is Cr 350. NGC 6426 was an easy catch. really tiny. Barely able to make it with 38x.
M10 & M12 (New): At the center of constellation. M10, a star, a pair and then M12 forming a line. can not fit in same binocular view. M12 seems bigger than M10. On M10, I can see sort of triangular shape because of few bright stars at the vertices.
Box nebula - NGC 6309: Tried to locate it, but failed. Need to read more.
M14 (New): Yet another globular.
Green Nebula - NGC 6572: wasn't able to locate it.
M30: Impressive. H shape with globular hanging on top right corner. In my 32mm, 32mmx2x, 9mm it didn’t look that clear as compared to Jon's 17mm nagler last time. I guess better eyepiece helps. Saw it on Pete's 16' dob at 280x. Fabulous view. I wonder if those H shaped stars are part of this GC.
Observation Time:
Location: TDS, CA
Weather: Weather was excellent. Lil bit windy initially. but crisp clear
Instruments: My 10” dob & 10x50 binocs.
Buddies: Pete.
Total Objects: 17 (Incomplete)
New Objects: 13
Another great session at TDS. It was SDAA's annual BBQ party too. Had a hosting training session for the 22inch telescope.
Caught lot of new objects...
Initially, I wanted to cover all the M's near horizon.
M3 (New): Nicely aligned bten arcturus and canes venatici. Arc of arcturus and star above perfectly points to M3. Visible in binocs and finder 9x50. Really bright and widespread. core is tightly packed, but There seems to be branch of stars coming out if it. all stars resolvable in that branch in 9mm.
M5 (New): located Exactly opposite of M3. Easy to catch with serpens Caput last two stars. Binocular object. Tiny, tightly packed and fainter than M3.
M94 (New): Tiny galaxy in canes venatici. easy to catch. Seems to be tiny fuzzy, elliptical. It’s faint. Wonder how messier find this object.
M63 Sunflower Galaxy (New): Again easy catch. Edge on. lil bit brighter and bigger than M94. can not see any sunflower shape.
M101: really Fainter. Seems face on. still bigger than M63 or M94. On opposite side of M101. there is a galaxy triplet (IC #).
M51 Whirlpool galaxy: both galaxies clearly visible.. broken eight shape. no details visible in 32mm x 2x (16mm). I guess aperture is the key here.
M11 Wild duck cluster: Rich OC with thousands stars. It’s a failed globular cluster probably.One bright star at the center while a pair outside the cluster. Three dark regions making a triangle with each other. Can not see any stars in there. Can resolve almost all stars... cluster doesn't fit in 9mm eyepiece 135x.
Opphiuchus Clusters (New):
Browsed thru Opp. clusters. IC 4665 is indeed bright and beautiful in binocs. At 38x, fills whole eyepiece. 4-5 yellow stars. Not sure what is Cr 350. NGC 6426 was an easy catch. really tiny. Barely able to make it with 38x.
M10 & M12 (New): At the center of constellation. M10, a star, a pair and then M12 forming a line. can not fit in same binocular view. M12 seems bigger than M10. On M10, I can see sort of triangular shape because of few bright stars at the vertices.
Box nebula - NGC 6309: Tried to locate it, but failed. Need to read more.
M14 (New): Yet another globular.
Green Nebula - NGC 6572: wasn't able to locate it.
M30: Impressive. H shape with globular hanging on top right corner. In my 32mm, 32mmx2x, 9mm it didn’t look that clear as compared to Jon's 17mm nagler last time. I guess better eyepiece helps. Saw it on Pete's 16' dob at 280x. Fabulous view. I wonder if those H shaped stars are part of this GC.
Labels:
Aqr GC M72 - OC M73,
Cap GC M30,
CVn Gal M51 Whirlpool,
CVn Gal M63 Sunflower,
CVn Gal M94,
CVn GC M3,
Location TDS,
Oph Blue PN 6572,
Oph Box PN 6309,
Oph GC M10,
Oph GC M12,
Oph GC M14,
Oph OC 6426,
Oph OC Cr350,
Oph OC IC4665,
Sct OC M11 Wild Duck,
Ser GC M5,
UMa Gal M101 Pinwheel
Wednesday, July 2, 2008
First session with Jon Issacs...
Date: 28th June 08, Saturday
Observation Time: 8:30pm to 12:00pm (3:30 hrs)
Location: KC, CA
Weather: Seeing was “okay” not excellent. Lil bit windy and after 12:00 winds picked up. Not cold at all. Survived on t-shirt. Lil bit of light pollution on south because of border patrol check-post.
Buddies: Jon Issacs. Only two of us at this dark spot. Plenty of discussions.
Instruments: My 6” dob. Jon’s 12.5 discovery dob. Williams 80mm APO, 10x50 binocs.
Got in touch with Jon thru craigslist. Overall, in this observing session, I wanted to learn as much as possible thru Jon’s 20 years experience. I didn’t have any observation plan. The only thing which I had in mind is to point my 6” dob to each and every object that Jon points thru his 12.5” dob. Compare both views. Try Jon’s eyepieces on my dob, if possible and compare both views.
This is first time I tried the laser collimator. Jon has a nice 1.25” laser collimator. Initially I collimated my scope with my collimation cap. It wasn’t perfect, but almost there. With laser collimator, I realized how easy and precise collimation can be. Jon mentioned that my mirror cell seems to be push-pull cell and described me the use of locking vs collimating screws. In the process, we realized that my focuser tube is also having some problem. Optics doesn’t align properly when focuser tube is fully inwards vs fully outwards. Need to find out more.
Tried the collimation star test on Vega, but Jon mentioned that star tests are pretty good on small apertures or refractors. For big apertures its hard to see those concentric circles. Also seeing wasn’t good enough to try it on my scope.
Double Double: Able to resolve it at 96x only (25mm x 2x). Jon was able to resolve it with lower magnification. My vision is still not fully adapted to these observations. I also tried Jon’s 9mm eyepiece (135x), and seemed like it showed me high contrast in the view than my 25mm x 2x combo.
Saturn: It was close to horizon and was still under dusk. Seeing wasn’t that great. A moon aligned on left side of the rings and titan, aligned at 4 o’clock of rings, were clearly visible in my scope. Again, Cassini division eluded me. In Jon’s 12.5”, Saturn was beautiful & crisp. One more moon was visible next to the first one I saw in my scope. Rings were nice, but I didn’t pay attention to Cassini division. Damn it !!
M57: Ring Nebula: While observing for Ring nebula, got acquitted to left eyed finder on Jon’s 12.5” dob. He also mentioned a trick for locating objects thru finder by using both eyes so that the brain creates combined image of cross-hairs of finder on the naked eye sky image and it helps to quickly locate the objects. Its was lil bit difficult for me in the beginning, but I got used to it while locating star clusters in later session.
Because of dusk, the Ring nebula wasn’t a clear view, on my scope initially it looked like out of focus star, but with Jon’s 12.5 nebulosity was clear. We should have tried it late night. Also use of filter would have been useful.
I need to confirm and understand the location of Ring nebula in the map.
Omega Centauri: Initially wasn’t able to find it with naked eye. But browse thru binocular really helped. Thru Jon’s 12.5”, it was simply fabulous. I was able to resolve the stars in the outskirts of the globular, but the center was too dense. Whole eyepiece was filled up with the globular (don’t remember the magnification). Thru my scope, it was a nice image too.. but Jon had a better contrast than mine. Again it was too low on horizon and border patrol strong lights were killing it.
M4: Fabulous view thru Jon’s 12.5”. In my scope, the M4 and globular NGC 6144, next to Antares, were in same eyepiece view. Pretty nice.
Northern Jewel Box: NGC 6231: I always heard abt it, but never looked at it. Jon pointed to it. In the binocs, APO and finally in my scope. Beautiful !! didn't pay much attention to colors.
M6: Ptolemy’s cluster: It always looks better in wide angle or binoculars.
M7: Butterfly cluster: this is first time I indeed saw the butterfly shape in this cluster. The red star the end of the butterfly body was noteworthy. With my 32mm (38x) color of the red star was noteworthy, but with 3x barlow on it (76x), the color went down to orange. Jon’s 16mm Nagler (76x) eyepiece view was much wide angular than my 16mm setup. It looked nice thru Jon’s 80mm refractor.
M11: wild duck cluster: Nice view in 12.5” dob. Unable to see the shape: flock of flying ducks. I didn’t try it in my scope. We were star-hopping just too fast :), but I confirmed the location thru my binoculars.
M80: Jon pointed to it.. I saw it and forgot :). Just too fast star hopping !!
M8: Lagoon Nebula: While looking for M11 wild duck cluster in my scope, I accidently, pointed to a nebulous object and Jon mentioned that I am infact pointing to Lagoon nebula. I have seen and pointed to Lagoon before (8 months back), but I have just forgotten it completely.
Browsed through binoculars to locate Lagoon. M6 -> M7 -> Lagoon -> Triffid
The nebula also had a star cluster located at 2 o’clock of it. (NGC 6530). Fabulous view thru my 23mm (38x). We tried Jon’s Luminicon deep sky filter on it and nebulosity indeed became brighter. Lagoon was sort of in a circular shape. Second part of nebulosity was lying 1 o’clock to this circular shape and was bifurcated by a dark lane. Also I felt that another nebulosity part was there around 5 o’clock of this circular shape. No dark lane, but separation was clearly visible. Nice view thru Jon’s 12/5” dob. was able to see bright stars at the core of the nebula. Missed the hourglass nebula inside Lagoon. Need to observe carefully and with high magnification.
Missed Triffid and Swan.. instead we moved to Dumbbell nebula.
M27: Dumbbell Nebula: the interesting part of M27 was to indeed find it. Jon gave me amazing star-hopping session with binoculars to locate and confirm dumbbell nebula.
Altair -> three stars aligned with Altair in middle. -> 9 o’clock of Altair around 5 deg N (left) -> three sections aligned: Wider pair of stars + below it, shorter pair of stars + below it, single bright star. -> In between the middle shorter pair and single bright star, there are three stars in a cluster and M71 globular is next to it. -> back to middle shorter pair of stars and move to N (left) around 5 deg. Bright star. 4 o’clock of which is dumbbell nebula. -> Pair of stars at 9 o’clock of dumbbell is aligned to point to dumbbell -> Pair of stars at 11 o’clock of dumbbell is aligned to point to dumbbell
Also, From Altair -> Move to 11” 4 deg and see the Coat Hanger. This star alignment is fabulous and looks like real coat hanger :). Coat hanger extended W (up), points directly to dumbbell nebula.
Jon’s star-hopping skills are indeed commendable.
With this knowledge of alignments thru binoculars, it took me less than a minute to point my scope to dumbbell nebula.
Another fabulous view thru my 32mm (38x) and 25mm (48x). Had filter on 25mm. really bright nebulosity. Didn’t observe thru 12.5”
Leo triplet: M65 M67 NGC3628. With my previous TDS experience, I found it easily. Bad seeing and its was at 5 deg from horizon hill. Better look in 12.5”. Was able to see lil bit of dust lane in NGC3628
Jupiter: Extremely bright. 4 bands visible. 3 moons visible on right and one on left. 3 moons were not as a pointed star but more-ever like a disk..
Canes Venatici Galaxy Cluster: Hickson68 This is Jon’s favorite object. Observed thru 12.5” dob. Kite formation – First vertex is a Bright star. Below it was a tiny galaxy (NGC5350) as a second vertex and pair of galaxies as third vertex (NGC5354 & NGC5353). All three aligned in a straight line. Pair seemed to be brighter than stand alone one. Below it, there is another faint galaxy (NGC5355), edge on, at the fourth vertex aligned in a straight line with first vertex bright star. In the same eyepiece view, way down, there is another bright star and above it a bright and big galaxy (NGC 5371)… this was brighter and bigger than any other galaxies in the view. Jon didn’t remember numbers for these objects, but pointed to them with his excellent star-hopping skills. I didn’t have stamina to find them by myself :). Also there is supposed to be 5th member in Hickson 68 group in the same eyepiece view. Need careful observation next time.
M51: Whirlpool Galaxy While browsing in Ursa-Major, I asked Jon to look for M51 and M101. Again, both of us had excellent star-hopping session for these objects thru binoculars. M51 was an easy catch. Saw thru 16mm Nagler on my scope. Compared to (32mm x 2x) barlow combo, 16mm Nagler contrast view was great. Bad seeing, so hard to see the spiral structure. On12.5” dob, spiral structure was somewhat visible, but because bad seeing and less enthu, I didn’t delve into details.
M101: Thru binoculars it was easy catch, but I wasn’t able to catch it on my scope. I was too tired I guess.
Veil Nebula: Jon pointed his 12.5” dob on both parts of nebula. In first part, central bright star (52 Cygnus). Nebulosity on both side. Right side nebulosity brighter than left side, but left side size is bigger than the right side. Second part thru my scope. Impressive view. Tried with 32mm filter. Also tried to understand the precise location. Pretty easy to confirm location because of 52 Cygnus star. Now I have read more description abt this nebula, I should be able to observe it in finer details.
Alberio: Just before leaving, I pointed to Alberio to see the colors. Immediate split with 32mm. nice golden and green/bluish pair.
Overall, It was great session. More than 20 DSOs and two planets. Two doubles. Learnt a lot abt telescope, eyepieces, collimation and star-hopping. Jon also mentioned that he liked my technique of star hopping thru clock positions. It was first time he heard abt it and indeed liked it. On the negative side, I felt like we rushed really fast in the whole session. It should have been lil bit slow with details observations and discussing those. Also whole session was without dinner :). If I would have eaten something in the middle, I would have preferred to stay longer.
Any way, Last two months or last 8-10 weeks are THE BEST time of my astronomy life. Moving to "next level" pretty fast, unexpectedly.
Observation Time: 8:30pm to 12:00pm (3:30 hrs)
Location: KC, CA
Weather: Seeing was “okay” not excellent. Lil bit windy and after 12:00 winds picked up. Not cold at all. Survived on t-shirt. Lil bit of light pollution on south because of border patrol check-post.
Buddies: Jon Issacs. Only two of us at this dark spot. Plenty of discussions.
Instruments: My 6” dob. Jon’s 12.5 discovery dob. Williams 80mm APO, 10x50 binocs.
Got in touch with Jon thru craigslist. Overall, in this observing session, I wanted to learn as much as possible thru Jon’s 20 years experience. I didn’t have any observation plan. The only thing which I had in mind is to point my 6” dob to each and every object that Jon points thru his 12.5” dob. Compare both views. Try Jon’s eyepieces on my dob, if possible and compare both views.
This is first time I tried the laser collimator. Jon has a nice 1.25” laser collimator. Initially I collimated my scope with my collimation cap. It wasn’t perfect, but almost there. With laser collimator, I realized how easy and precise collimation can be. Jon mentioned that my mirror cell seems to be push-pull cell and described me the use of locking vs collimating screws. In the process, we realized that my focuser tube is also having some problem. Optics doesn’t align properly when focuser tube is fully inwards vs fully outwards. Need to find out more.
Tried the collimation star test on Vega, but Jon mentioned that star tests are pretty good on small apertures or refractors. For big apertures its hard to see those concentric circles. Also seeing wasn’t good enough to try it on my scope.
Double Double: Able to resolve it at 96x only (25mm x 2x). Jon was able to resolve it with lower magnification. My vision is still not fully adapted to these observations. I also tried Jon’s 9mm eyepiece (135x), and seemed like it showed me high contrast in the view than my 25mm x 2x combo.
Saturn: It was close to horizon and was still under dusk. Seeing wasn’t that great. A moon aligned on left side of the rings and titan, aligned at 4 o’clock of rings, were clearly visible in my scope. Again, Cassini division eluded me. In Jon’s 12.5”, Saturn was beautiful & crisp. One more moon was visible next to the first one I saw in my scope. Rings were nice, but I didn’t pay attention to Cassini division. Damn it !!
M57: Ring Nebula: While observing for Ring nebula, got acquitted to left eyed finder on Jon’s 12.5” dob. He also mentioned a trick for locating objects thru finder by using both eyes so that the brain creates combined image of cross-hairs of finder on the naked eye sky image and it helps to quickly locate the objects. Its was lil bit difficult for me in the beginning, but I got used to it while locating star clusters in later session.
Because of dusk, the Ring nebula wasn’t a clear view, on my scope initially it looked like out of focus star, but with Jon’s 12.5 nebulosity was clear. We should have tried it late night. Also use of filter would have been useful.
I need to confirm and understand the location of Ring nebula in the map.
Omega Centauri: Initially wasn’t able to find it with naked eye. But browse thru binocular really helped. Thru Jon’s 12.5”, it was simply fabulous. I was able to resolve the stars in the outskirts of the globular, but the center was too dense. Whole eyepiece was filled up with the globular (don’t remember the magnification). Thru my scope, it was a nice image too.. but Jon had a better contrast than mine. Again it was too low on horizon and border patrol strong lights were killing it.
M4: Fabulous view thru Jon’s 12.5”. In my scope, the M4 and globular NGC 6144, next to Antares, were in same eyepiece view. Pretty nice.
Northern Jewel Box: NGC 6231: I always heard abt it, but never looked at it. Jon pointed to it. In the binocs, APO and finally in my scope. Beautiful !! didn't pay much attention to colors.
M6: Ptolemy’s cluster: It always looks better in wide angle or binoculars.
M7: Butterfly cluster: this is first time I indeed saw the butterfly shape in this cluster. The red star the end of the butterfly body was noteworthy. With my 32mm (38x) color of the red star was noteworthy, but with 3x barlow on it (76x), the color went down to orange. Jon’s 16mm Nagler (76x) eyepiece view was much wide angular than my 16mm setup. It looked nice thru Jon’s 80mm refractor.
M11: wild duck cluster: Nice view in 12.5” dob. Unable to see the shape: flock of flying ducks. I didn’t try it in my scope. We were star-hopping just too fast :), but I confirmed the location thru my binoculars.
M80: Jon pointed to it.. I saw it and forgot :). Just too fast star hopping !!
M8: Lagoon Nebula: While looking for M11 wild duck cluster in my scope, I accidently, pointed to a nebulous object and Jon mentioned that I am infact pointing to Lagoon nebula. I have seen and pointed to Lagoon before (8 months back), but I have just forgotten it completely.
Browsed through binoculars to locate Lagoon. M6 -> M7 -> Lagoon -> Triffid
The nebula also had a star cluster located at 2 o’clock of it. (NGC 6530). Fabulous view thru my 23mm (38x). We tried Jon’s Luminicon deep sky filter on it and nebulosity indeed became brighter. Lagoon was sort of in a circular shape. Second part of nebulosity was lying 1 o’clock to this circular shape and was bifurcated by a dark lane. Also I felt that another nebulosity part was there around 5 o’clock of this circular shape. No dark lane, but separation was clearly visible. Nice view thru Jon’s 12/5” dob. was able to see bright stars at the core of the nebula. Missed the hourglass nebula inside Lagoon. Need to observe carefully and with high magnification.
Missed Triffid and Swan.. instead we moved to Dumbbell nebula.
M27: Dumbbell Nebula: the interesting part of M27 was to indeed find it. Jon gave me amazing star-hopping session with binoculars to locate and confirm dumbbell nebula.
Altair -> three stars aligned with Altair in middle. -> 9 o’clock of Altair around 5 deg N (left) -> three sections aligned: Wider pair of stars + below it, shorter pair of stars + below it, single bright star. -> In between the middle shorter pair and single bright star, there are three stars in a cluster and M71 globular is next to it. -> back to middle shorter pair of stars and move to N (left) around 5 deg. Bright star. 4 o’clock of which is dumbbell nebula. -> Pair of stars at 9 o’clock of dumbbell is aligned to point to dumbbell -> Pair of stars at 11 o’clock of dumbbell is aligned to point to dumbbell
Also, From Altair -> Move to 11” 4 deg and see the Coat Hanger. This star alignment is fabulous and looks like real coat hanger :). Coat hanger extended W (up), points directly to dumbbell nebula.
Jon’s star-hopping skills are indeed commendable.
With this knowledge of alignments thru binoculars, it took me less than a minute to point my scope to dumbbell nebula.
Another fabulous view thru my 32mm (38x) and 25mm (48x). Had filter on 25mm. really bright nebulosity. Didn’t observe thru 12.5”
Leo triplet: M65 M67 NGC3628. With my previous TDS experience, I found it easily. Bad seeing and its was at 5 deg from horizon hill. Better look in 12.5”. Was able to see lil bit of dust lane in NGC3628
Jupiter: Extremely bright. 4 bands visible. 3 moons visible on right and one on left. 3 moons were not as a pointed star but more-ever like a disk..
Canes Venatici Galaxy Cluster: Hickson68 This is Jon’s favorite object. Observed thru 12.5” dob. Kite formation – First vertex is a Bright star. Below it was a tiny galaxy (NGC5350) as a second vertex and pair of galaxies as third vertex (NGC5354 & NGC5353). All three aligned in a straight line. Pair seemed to be brighter than stand alone one. Below it, there is another faint galaxy (NGC5355), edge on, at the fourth vertex aligned in a straight line with first vertex bright star. In the same eyepiece view, way down, there is another bright star and above it a bright and big galaxy (NGC 5371)… this was brighter and bigger than any other galaxies in the view. Jon didn’t remember numbers for these objects, but pointed to them with his excellent star-hopping skills. I didn’t have stamina to find them by myself :). Also there is supposed to be 5th member in Hickson 68 group in the same eyepiece view. Need careful observation next time.
M51: Whirlpool Galaxy While browsing in Ursa-Major, I asked Jon to look for M51 and M101. Again, both of us had excellent star-hopping session for these objects thru binoculars. M51 was an easy catch. Saw thru 16mm Nagler on my scope. Compared to (32mm x 2x) barlow combo, 16mm Nagler contrast view was great. Bad seeing, so hard to see the spiral structure. On12.5” dob, spiral structure was somewhat visible, but because bad seeing and less enthu, I didn’t delve into details.
M101: Thru binoculars it was easy catch, but I wasn’t able to catch it on my scope. I was too tired I guess.
Veil Nebula: Jon pointed his 12.5” dob on both parts of nebula. In first part, central bright star (52 Cygnus). Nebulosity on both side. Right side nebulosity brighter than left side, but left side size is bigger than the right side. Second part thru my scope. Impressive view. Tried with 32mm filter. Also tried to understand the precise location. Pretty easy to confirm location because of 52 Cygnus star. Now I have read more description abt this nebula, I should be able to observe it in finer details.
Alberio: Just before leaving, I pointed to Alberio to see the colors. Immediate split with 32mm. nice golden and green/bluish pair.
Overall, It was great session. More than 20 DSOs and two planets. Two doubles. Learnt a lot abt telescope, eyepieces, collimation and star-hopping. Jon also mentioned that he liked my technique of star hopping thru clock positions. It was first time he heard abt it and indeed liked it. On the negative side, I felt like we rushed really fast in the whole session. It should have been lil bit slow with details observations and discussing those. Also whole session was without dinner :). If I would have eaten something in the middle, I would have preferred to stay longer.
Any way, Last two months or last 8-10 weeks are THE BEST time of my astronomy life. Moving to "next level" pretty fast, unexpectedly.
Labels:
Cen Omega Centauri,
CVn Gal Hickson68,
CVn Gal M51 Whirlpool,
Cyg Veil Neb,
Leo Gal M65-M66-3628,
Location KC,
Lyr DS Alberio,
Lyr DS DoubleDouble,
Lyr PN M57 Ring,
Saturn,
Sco GC M4,
Sco N JewelBox,
Sco OC M6 Butterfly- OC M7 Ptolemy,
Sct OC M11 Wild Duck,
Sgr Neb M8 Lagoon,
UMa Gal M101 Pinwheel,
Vul PN M27 Dumbbell
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