Little one @ Blvd

Date: August 18th 2012, Saturday
Observation Time: 7:30pm to 11pm (observing time ~3.5hrs), 
Location: Jon's @ Blvd
Weather: fine.. 4/5 seeing.. before sunset it was cloudy, but later clouds just disappeared. Moon - 1st day 
Instruments: Jon's 16" scope and his Williams 80mm scope  


Our little one visited Jon's place in mountains for first time. Slept all the way during the drive. But played for a while at their place. Later got into daycare anxiety mode and just made everybody go nuts..later got back to normal.

Moon: FAILED. Started observation with locating first day phase moon. But it was way too hard. Never found it. It was Ramadan Ed 1st day moon.

Saturn: Saturn-Mars-Spica triplet as visible in evening dusk. Saturn visible nicely. Tried thru Williams 80mm with 9mm, 4mm TMB eyepieces. Saturn rings clearly visible, front rings are on bottom, while the back side f the ring moves upwards. As night moved on, can clearly see the dark gas lanes on the saturn disk. No details / gaps on rings. Still it was impressive what 80mm scope showed from the dark place.

Mars: 80mm is not enough for mars details. Seemed like big orange bright spot in the scope. Going closer to horizon, so dint get a chance to see thru 16" scope.

M6-M7: naked eye visibility. Fits in same view in the binocs ~6deg FoV. Jons 16" scope lot of details on both. Butterfly shape. apparently i got this pair confused with m46-m47 and ended up looking for the planetary nebula in it. Jon reminded me of absence of last year. Hsshh..

Antares GC M4: Visible thru bincs. 800mm with 24mm EP, shows the GC nicely. Very tiny though. With 9mm, i think can resolve some outskirt stars. 

Northern Jewel Box: Looks nice from all three instruments. Binocs show 5-7 stars low on horizon. 80mm has the best view. Cluster fills up 50% of the view. bright stars with some E + 4 + curved shape visible. In Jons 16", view was fully filled with eyepiece. Can see very faint stars. 

M8 - M20: Quick browse thru. Lagoon without filter still shows lot of nebulosity and C shaped dark lane separation clealt from 16" scope. Triffid looks smaller as compared to Lagoon, but whole nebulosity is nice. More I spent time in EP for Triffid, the dark lanes started popping up.

Swan M17: Quick browse again.. but impressive.. distinctive shape and bright stars at the bottom and another one at the center  in the curvature shape. 

Eagle M16: no nebulosity... typical star formation like a symbol of an angle.

M22 GC above star: quick browse thru binocs and 80mm.. is it bigger than Antares GC 

M25 OC Flipped comma: Binocs show the 3 deg view of this object with inverted comma shape. OC at the center of the comma is smaller, but the whole spae makes it beautiful. 

M23: While looking for Crescent nebula ended up on this one. very bright and impressive object. 16" scope view is just lightend bright with this object. lot of yellow white stars. 

Crescent Nebula: Very tiny fuzzy object from the 16" scope.. but its definitely bigger than other planetary nebula objects like saturn nebula or ghost of jupiter. Can not miss the object frm 16" scope.. next to a star. Infact i found this one first rather than way bigger M23 :). Increasing the mags didn't make much difference though in the visibility... There is a GC nearby it.. i think you can definitely distinguish betn the type of these objects i.e. GC vs nebula.

M10-M12: Browsed the Ophiuchus GCs. Very impressive. looks similar in size as well brightness..somehow binocs gave impression that m12 is bigger, but scope shows m10 t be bigger. Hshh.. must be feeling sleepy. Very easy to locate. Probably saw these after a long time. no discernible shape.. but these are definitively bigger than m92 in Hercules (later).

Planetary ngc 6445 Box Nebula (New): Jon showed this planetary. seemed like bright blue circle...very very tiny.. dont remember anything else. Later i was able to locate it smoothly. There is another GC next to it ngc 6440. In moderate view the pair looks nice.. very tiny and faint..probably only possible in high apperture 16" scope

Ngc oc - Ic oc - Ic oc: NGC is definitively looks nice from the16" scope.. but IC objects are better in binocs. ngc-ic and the planetory fits in same view. 

Gc near spica: Jon showed this one. wasnt able to locate it by myself. its seemed like OC, but its loosely connected GC.

M13: Took a long time just to locate HER constellation. I sort of lost the scale of quadrilateral size. It is smaller than what I was thinking. One year gap in observation made me forget lot of things. M13 is fabulous.. supports magnification really well. yellow white stars.. very bright.. 

Gal: Gal near M13.. very faint and tiny as compared the M13. Wasnt able t fit both in the same view of 16" scope.

Planetary: Again.. yet another planetary..

M92: Tiny as compared to M13.. but i compared it immediately with m10-12 pair.. and m92 seems smaller and fainter than those.. Its sort of lost beauty in front of other fabulous GCs in the sky.

Saturn Neb: Easy to locate. White bluish object.. tiny.. 

M Gc.. M oc: browsing all three objects including saturn neb, is an interesting experience. It shows the differences in the object size. The triagnle is so tiny.. OC is very tiny as well.

M30: Viewed thru binocs.. very tiny.. the typical shape sort of shows up but not discernible well from binocs.

Milkyway: the orion and Perseus arms were marvelous.. its like very bright white cloud belt in the sky.. Dark skies rules... simply breathtaking.

Nexstar 80mm Refractor EP Comparision

Date: Sept 23rd 2009, Wednesday
Observation Time: 8pm to 8:45pm (45mins)
Location: SD home
Weather: Okay. Moon 30% illuminated.
Instruments: Celestron Nexstar 80GT GOTO Refractor f/5
Buddies: Ashwin

Trying to understand which EPs are good for this refractor considering just basic needs. So did a quick eyepiece comparision with Ashwin on moon and jupiter.
10mm SMA vs 10mm Xcel
25mm SMA vs 25mm Elux

The scope came with the SMA EPs, but i am just trying if better EPs can make a huge difference for a newbie observer.

Tried it on Moon. (30% illuminated)
25mm => 16x
25mm + 2x barlow 12.5mm => 32x
10mm => 40x
10mm + 2x barlow 5mm => 80x

10mm SMA vs 10mm Xcel: Xcel defintely gives more wide field and better eye relief. The image seemed to be same in brightness. With 2x barlow on, Ashwin picked up 3 different objects at various locations and compared. with barlowed image, he noticed that Xcel gives sharper image. Also to him, xcel seemed to be better in brightness. On other side, Xcel is lil bit bulkier than SMA.

25mm SMA vs 22mm Elux: Ashwin didn't find any difference in the views with this one. Not much different except eye relief. Barlowed image also dint have a huge impact with Elux.

Jupiter: 25mm din't provide much magnification here. With 10mm and barlowed image, definitely gave lil more in the Jupiter. At 10mm 50x, Ashwin had hard time seeing any bands on jupiter. Probably i can see them, because i know they are there. with 5mm 100x, he can make out the bands on the disk.. but color aberration indeed hampers the image.

M22: Wasn't a great view of M22 in 2mm @20x. Moon Light pollution also just makes it bad.

Overall with the EP comparison, I realized that it doesn't make huge difference for a beginner to differentiate.. probably for my dad, it wont make any difference either :) !!

Independance Night

Date: August 15th 2009, Saturday
Observation Time: 8:00pm to 10:30pm (2.5 hrs)
Location: Jon's Home, Boulevard, CA
Weather: Exellent Seeing and Transparency. Lil bit windy.. and chillier later though in summer.
Instruments: Jon's 12.5" dob, My 10" dob.
Buddies: Jon and his friend Rick wih his Twins.

Total Objects: 15 = 14 + Jupiter
New Objects: 3

Tried iPhone software SkyVoyager for guidance. Overall, excellent experince using it. For whole night, I didn't even touch my paper sky atlas. The best part is the object descriptions are also available and it helps to observe the object with its description in your head. Helps in understanding the object.

The trouble with the softwar was:
- Night mode vision is really not that Red. so for faint objects, was loosing the darkness adpting.
- Doesn't have any recently observed object lists. would have helped to remmebe rhte browsing order next day.

Jupiter: Indeed bright view, 4 satellites 3 on one side and one on other side of the Jupiter disk. Two dark gaseous strips clearly visible. Becasue of wind not a stable view. Also after sunset, not yet dark enough to see the details.

M7 Ptolemy, M6 Butterfly: Wonderful views of M7 and M6 in 17mm Nagler.

M22 Globular: Bright Globular in 17mm. No realization of any shape or any colors.

Tried Jon's Celestron OIII filter on varoius Nebulas with 17mm Nagler.

M8 Lagoon: In non filter view, can see the lagoon island, a dark lane and some fuzziness on other side wiht a star cluster. Filter view really brings up the fuzziness and shows how much fuziness is indeed there. The dark lane shows full version of inverted "C". The size of the lagoon got increased and the other side of the darkness C is all fuziness. The filter indeed helps to see the fuziness, but it deemed the cluster. In jon's 12.5" scope, stars were lil brighter.

M20 Triffid: In non filter view, Triffid doesn't show much in 17mm (76x). Filter view indeed helps to bring the nebulocity and was able to see one dark lane and second one with averted vision. More magnification would have helped. Overall, first time I understood the difference betn the size of Lagoon and Triffid. Lagoon is probably 3-4 times bigger than triffid.

M17 Swan: In non filter view, M17 shows the typical "2" shape, but the filter brings all the fuziness surrounding "2". Again size of total fuziness is lil smaller than lagoon and more dispersed.

Veil Nebula: It was indeed hard to see the veil without any filter in my 10" dob. the nebulocity near Cyg 52 is still visible. But the second component was hard to find. With filter, almost all background stars were gone and the cyg52 nebulocity easily pops up.. the witchb room shape shows up immediately with all corners. the second circular component also easy to find and shows up nicely.. its surely fainter than first component.

M57 Ring: In 10mm Xcel can clearly see the ring structure, but it gave a feeling that its not focused. In Jon's 9mm Nagler, its indeed a sharp view and ring structure seems to be focused. I indeed felt the difference in two eyepieces clearly :). Ngler rules !! Filter didn't make much difference.. porbably ring was lil brighter, but i like the ring with stars around so didn't like the filter view much. probbaly needs more magnification with filter.

M11 Wild duck cluster: In 17mm Nag, Its a maervellous view..clear represntation of salt and paper cluster. One bright orange star is in the view. which outshines the cluster. not sure if it is in field of view or in cluster itself. Wih 9mm Nag, the bright star sort of lost the color, but it indeed showed the details on the cluster. the V shape of stars was visible clearly. also the surrounding dark lane V was also visible. probably V shapes imples the name wild duck (group) cluster.

M71 globular (New): Searched at wrong location and jon made fun of my star hopping skills :). M71 really tiny and not at all impressive.. just yet another GC type.

M27 Dumbell: Was marvellous and easy to pick up. Shows up easily in the finder. Dumbell conrast indeed supports high magnification. Too much nebulocity without filter itself. Din't try the filter.

M51 Whirpool Gal: Good view in 17mm Nag. You cna clearly see the 8 shape. The bridge betn the pair is not visible. some averted vision gives the feeling of spiral shape or dark lanes in M51. Infact in 9mm magnification, the spiral shape thru averted vision is visible.

Stephan's Quintet Galaxies (New): Jon tried to show this one, but it was indeed hard. Probbaly pushed the limits of 12.5" scope. Was looking into nothingness. With heavy averted vision probabaly saw two galaxies really close to each other in UL and BR line. surely not the object for 10" scope.

NGC7331 Galaxy (New): Saw it first time.. Edge on galaxy.. really really tiny. Still 30mm superview showed it. In 17mm Nagler it shows the edge on shape clearly. Din't get a chance to try the 10mm or 9mm view.

Overall, Din't observe too many objects. Left early. Still whatever objects I watched were with careful observations, with filter. Also iphone sw made the observations insightful. Astornomy sessions are surely getting better.

DSO Marathon - Part I

Date: 31st August 08, Sunday. Labor Day Long Weekend
Observation Time: 7:30pm to 1:00pm (5:30 hrs)
Location: Boulevard Oaks campground, CA
Weather: Seeing was Good.. not excellent. Heavy Dew. Lil bit cold because of humidity. All things got wet, but still survived for long time :)
Instruments: My 10” dob & 10x50 binocs. Jon's 12.5” dob, and Astrotech 120ED refractor.
Buddies: Jon and his wife Francis.

Total Objects: 49. The max I have ever seen in one shot :)
New Objects: 16 + Ophiuchus OCs (4)

Had a great session with Jon Isaacs. Jon knows so many “different” objects and their precise locations that otherwise it would have taken me a while to just know them. Had a great DSO marathon.

Venus: Venus was popping on western sky 15 deg above horizon. Because of high clouds on west, the view was bit “shaky” and wasn't able to get sharp image (150x, 96x). As Jon pointed out correctly, because of color aberrations in refractor, upper part of Venus has purple shade, while lower part seems orange in color. While in out of focus, it gets green shade. Jon mentioned that phase was almost full, but because of blurry image didn't see much.

Mercury: It was around 4deg SE of Venus in same binocular view. Was really bright than I hoped. Surely smaller in size and fainter than venus. Thru refractor just seemed to be a “dot” and nothing more. (150x)

Mars (New): 7 deg NE of Venus. Nice and bright. Jon moved his refractor to Jupiter, saying clouds on west are killing everything. so din;t observe it from telescope. Completely missed it.

Jupiter: Fabulous view thru refractor at 150x. I cannot believe that 120mm refractor apperture gives so sharp and crispy views as 250mm (10”) reflector. NEB, SEB, NTZ, STZ were clearly visible. The great red spot was popping into the eye, Shape was prefectly visible, but thecolor seemed to be white. The STZ (upper part) also had some sawtooth structure. All 4 moons were widely spaced. Precisely same view thru my 10” dob at 135x. Cranking up the mags at 270x, killed the view.

Also, because of lil bit “wavy” “shaky” views, Jon suggested not to crank up mags.

M4 & NGC 6144: Antares, M4 and NGC 6144 were not impressive. Because of twilight, 6144 was almost invisible. M4 was just another globular, nothing specacular.

M7-M6: Both of them at 38x were impressive. Red tail star of M6 butterfly, seemed more orangish. Stars in M7 most of them seem yellowish with few seemed to be white.

M28-M22: Quick browsing thru lambda saggi, Kau Borealis, M22 was impressive. Able to resolve outskirts with 38x. M28 was really tiny, but bluish color wasn't as impressive as seen before.

Veil Nebula: I told Jon abt my last observation to see the nebulousity of veil, without filter. On 12.5” dob, Cyg52 veil neb was barely visible to me. I can feel the neb, but not the shape of it. Second part was also disappointing. With filter, some of the shape was perceptible, but again not impressively. Later at night, we saw Veil again and it was fabulous with filter. Veil was overhead and we captured 3 parts of veil. Cyg52 veil was great with its unique broomstick shape. The other end was also impressive from end to end. And in middle of these two, exists another one.. its bit fainter, but visible..also its more close to cyg52 veil component. Veil is Jon's favorite object, he watched it probably 4 times during the whole session.

Sagittarius browsing: Thru refractor, with wide-angle view (~30x), browsed saggitarius. It was marvelous and heavenly sight. It really gives a perspective on all objects at the same time. M8 Lagoon & its cluster, M20 Triffid, M21 OC in same view. M20 is really smaller than M8. M24 star cloud, M25 OC on moving left and M23 OC (New) on moving right looked great. M17 swan and M16 eagle were again in same view at two ends. Swan shape was clearly visible.

M8 Lagoon: Thru 10” dob, with the OIII filter on 24mm eyepiece (~50x), M8 was marvelous. The nebulousity was prominent. Semi circular dark lane seemed to be really wide. The left side neb seemed smaller than right+lower side neb. Hour glass also seemed to be brighter and lil bit bigger than non-filter views. Because of filter, only bright stars were visible and all stars indeed lost their charm. OC Cluster wasn't impressive either. High mags with filter (100x) surely killed all stars. Neb also seemed to be fainter than 50x view.

M20 Triffid: At 50x with filter, the nebula was indeed impressive. Dark lane Y shape was making sense as compared to non-filter views. The middle 3 stars were not that bright and hard to resolve the central star into double. Cranking up the mag to 100x helped lil bit with dark lanes and central double star resolving.

M17 Swan: this is one of the best objects in sky and with filter it became impressive. Along with 2 shape, the right and lower side nebulosity was clearly visible, more-ever like a peacock :). these two parts are extended almost as the same size as 2 shape. The central two bright stars in 2 shape seemed really dim.

M16 Eagle: With non-filter 38x view, the nebulousity was fainter. The characteristic, V hsape and the arc in the middle was impressive. With filter, the nebulousity brightness increased. Not as great as other nebulas, but still decently visible. Neb is just on the upper side of V.

M57 Ring: To have more fun with Filter, I pointed it to M57 and this is first time, I felt the blusish color. Ring was strikingly bright and with high mags it made it more impressive. Jon also mentioned that high mags + filter + planetary nebula combination works great as compared to other nebulas. With 150x, still the central star not visible. Also because of filter lost 2 o'clk star.

M27 Dumbbell: Brighter views with filter. Characteristic dumbbell shape with upper and lower wings. Left and right wings also mix well with dumbbell and are pretty bright..

The use of OIII filter on all 7 nebulas, really enhanced the view and had more fun in observing.

Saggi OC browsing: Thru binocs, captured M24 star cloud, M25 OC on left and M23 OC on right. Also captured fainter M18 OC (New). M18 wasn't much impressive thru 38x either. It was yet another OC.

Continued...

10" dob @ TDS - Part I

Date: 23rd August 08, Saturday
Observation Time: 8:00pm to 12:00pm (4 hrs)
Location: TDS, CA
Weather: Seeing was excellent. Lil bit windy in the end. Slightly hot.
Instruments: My 10” dob & 10x50 binocs
Buddies: Bill and Mohammad from next pad.

Total Objects: 27
New Objects: 9 (Mercury, Neptune and Saggi globular clusters)

This is first time I took this 10" dob to a dark site.. It was a rewarding experience. This aperture is indeed satisfying my thrust :). The saggi globular hunting is a proof of it.

Tried to collimate the dob with Collimation cap, but not precisely. Edward with 17" dob, helped me to collimate it with his howie glatter laser collimator. I really need to buy one.

Started with Venus & Mercury. Venus wasn't sharp.. green ghost shadow with actual image.. indeed out of focus.. also too low on horizon. I guess collimation wasn't perfect. Didn't try any high mags on Venus either. Mercury, a small dot was visible in 9x50 finder, but didn't find it in dob...way low on horizon.. Any way, this is first time i saw Mercury with optics. To make sure collimation is correct, I moved to Jupiter, but still wasn't able to focus clearly... bit frustrating.

< Lyra >
Double Double: At 97x, bare split of double double. It was indeed hard to see anything below that (76x). With 135x and 270x it was fabulous. I guess inter-pair split is probably around 60-70 arc seconds, while each individual pair split might be 1-2 arc seconds. bluish-white star colors. Check Here. Inter-split estimation incorrect.. need to verify again..

At high mag, it was really hard to keep in focus. The spring tension system on the dob is not that great. With both mount springs attached, it becomes too tight, while with single spring, the dob moves lil bit because of its weight. Comparing both options, two springs setup was better and tried to keep the objects in view as far as possible.

Alberio: Fabulous view. nice colors. With 38x, out of focus color contrast was great. with 135x and 270x nice color contrast with sharp focus. 38 arc seconds split. I estimated double double split up values based on Alberio split up.

M57 Ring Nebula: Easy catch: Really nice wide angle view in 38x and ring pops in the view easily. Tried all mags 76x, 135x and 270x... 135x was best view. Outer ring and middle dark hole was clearly visible. Averted vision really helps to view the ring. No colors. No central star visible to me. A field star at 2" clock immediate next to ring (Confirmed)

Binocular Star-hopping:
While confirming location of veil nebula, Mohammad from next pad showed up. It was his first time and he was really exited. So I gave him quick binocular tour of DSOs in Sagittarius M7 Ptlomey's OC -> M6 Butterfly OC-> M8 Lagoon -> M20 Triffid -> M24 Star cloud -> Saggi constellation -> Galactic Center -> M22 GC -> M25 OC -> M28 GC.

Also he asked for M13 GC. I got it in my binocs within few seconds, but it was hard to show him exactly where to look at :). Also tried Omega Centauri GC, but failed. I really need to confirm the location (??)

< Scorpius >
M4 & 6144 GC : Instead of browsing to Veil, I started with M4 Glob. Fabulous GC. No colors. Easy to resolve all outskirts stars. 6144 was also next to it. Out of 6144, M4 and Antares, only two objects can be in the 1.0 deg view at a time. 6144 GC is indeed twice the size of Antares, but Antares is too bright and close, dimming the 6144 brightness.

Northern Jewel Box (6231) : Too low on horizon.

M7 Ptolemy OC: Fabulous yellowish stars in view. At 36x whole eyepiece was full of yellow stars. Heavenly experience

M6 Butterfly OC: Butterfly shape visible in 36x, with Reddish orange star tail. The upper wing is loosely attached on a point to the central body, while lower wing is smaller in size. At 135x (9mm), too much mag to see the shape. also reduced some contrast on orange tail star.

< Sagittarius >
Spent hell lot of time in Sagittarius.

M8 Lagoon + Hourglass : Observed in detail. 36x showed the dark semi circular rift. The right side of the rift (E) has a small open cluster (6530). The bottom part of rift (N), has some nebulosity, while The upper part of the rift (W) has another region of nebulosity. At 76x and 135x, the upper nebulous part shows distinctive features: A bright fuzzy object and two stars aligned in SW-NE line. Fuzziness is larger in size and higher magnitude than those two stars. I think this fuzziness is hourglass nebula and with some creativity, you can imagine the shape @ 270x as hourglass aligned at SW-NE line. (Need to confirm). Deep sky filter would have really helped.

M20 Triffid + M21 : Observed in detail. 36x shows the Open Cluster (M21).. This OC is indeed bigger in size than Lagoon OC. Upper Left (SW) of which, lies the nebulosity. In the Y rift shape the bottom of Y prong is aligned SW-NE and is the only visible rift. Two stars are aligned with it on upper side. while 2 more bright stars defining edge of lower nebulosity. The 72x clearly shows one more star at the center of Y shape. It is also aligned with previous two stars. 76x also reveals the other 2 rifts of Y shape upper prong is more visible than lower prong. 76x reveals that the central star in Y is indeed a double star. 135x view was good too, confirming all details. Deep sky filter would have helped.

Kaus Borealis, M22, M28 & NGC-6638 GC: the 5th star of Tea pot is Kaus Borealis (lambda). I wasn't aware abt the name before. "Kau's" :) !! M22 is fabulous GC.. probably slightly fainter than M4. Looks good in high mags. M28 is also nice, bluish and tiny as compared to M22. Hard to resolve anything in there. while star hopping within 32mm eyepiece (36x), I accidentally saw a tiny GC next to Kaus Borealis, which was smaller in size than M28. Map confirmed that it is NGC 6638. It's probably same size as Antares, but bluish and fuzzy in size. Its like sky-blue color fuzzy dot. Also, map shows a planetary nebula NGC 6644 next 6638 but didn't see anything (confirm the mag and try it next time. ??)

First light with 10" dob..

Date: 4th July 08, Thursday
Observation Time: 11:30pm to 12:52pm (1:20 hrs)
Location: SD Home, CA
Weather: Seeing was excellent. Heavy light pollution, Red haze in the background.
Instruments: My 10” dob.

Jon loaned me his 10" dob. He mentioned that he is not using it htat frequently and considering my enthu, he offered it to me for a while.

The views in 10" dob are fabulous. with more aperture and 9mm eyepiece, Jupiter was simply fabulous.

Jupiter: Observed at beginning and end of the session, to avg out the seeing conditions. Tried all eyepieces and magnification. 9mm x 2x barlow combo (266x) view was the best. Bright disk... Almost all bands. Upper central one (S) bigger, lower central one (N) smaller and shifted downwards off equator, two more bands on lower side (N). Lower central band had a dark circle at the edge in the center. Upper central dark band on left side (W) has some white saw tooth. and in the same band on the right side there is white circular spot on the upper right corner (NE). some dark spot next to upper band (above central band)on left central and immediately another dark spot at 11pm in next upper band (NW)

4 moons 2 left (W) and 2 right (E). Within an hour, Eastern lower moon shifted from right (E) to left (W) crossing the upper moon. the magnification was so high that all moons look like disks. i never seen moons as disks in my 6" dob.

M8 Lagoon: The nebulosity was almost invisible. Nice cluster in the view. cluster in a shape of crown.. like burger king crown advt... at the center of the crown there is tiny cross. Left side of the crown is some nebulocity.. two stars directly vertical, paralle to crown and are betn nebulosity and crown. another two stars close to each other and at 11 o'clock of the first two brigh stars... this second pair seems to be inside the nebulosity. Exellent view in the thru 25mm x 2x barlow (94x)and 9mm (133x) eyepiece

M20 Triffid: Only the cluster was visible and nebulosity was totally absent. I am not sure if I was looking at correct location. The cluster had nice V shape on the left. In the center had a nice triangle and 7 shape rotated by 90 deg. No nebulousity at all.

M7 Butterfly: found it easily.. shape was easily visible. the bright red star color was absent.. I think its night pollution that killed it. Seems like red whitish background of light pollution in the eyepiece.

M6 Ptolemy: Thought that M6 was easy to catch, but i guess it was too close to horizon.. so just didn't see it.

M22 Globular: Really nice cluster. Around 2 degrees NE from the gamma saggi. wasn;t able to resolve anything at 32mm (38x), but with 16mm and 12mm really nice view.. Infact 9mm (133x) view was excellent. 266x didn't help much. In 9mm almost resolved all stars.. cluster seems ot be devided in 3 parts. Off the center there is group of stars and all others stars are disperesed around it on Left and right side. No colors. 9mm eyepiece almost full in the view.

M28 Globular: NW side of gamma saggi around less than a degree. not able to resolve the stars with any magnification... with higher magnification just lost the cluster. this cluster is really tiny. compared to M22 globular its 1/4th in size. and its brightness seems lighter than M22, but i guess thats because of size.

First Light @ TDS - 8th Sept 2007

Date: 8th Sept 2007, Saturday
Observation Time : 8pm to 11:30pm (3:30 hrs)
Location : TDS, CA
Seeing : Good (for me, "excellent")
Transparency : Good (for me, "excellent")
Cloud Cover : None
Instrument : My 6' dobsonian reflector Celestron StarHopper 6, Bob's 17.5' dobsonian reflector, 22' SDAA observatory telescope, My 10x50 Nikkon binocs.

Buddies : Ranga and SDAA president Bob for a while

Highlight of the night : M17 - Swan Nebula

TDS was an awesome experience. This is first time I took my 6' dob there. I have browsed the sky using the dob from home, but dark sky from TDS was a feast. It was the true "First Light" for my telescope.

Some mistakes on my side. Actually, I forgot to take the side fixers of the telescope. Means.. I wasn't able to hold on to a object through telescope for others to see.. It was somewhat a mess... but Ranga and me pulled it together really well.

Milky Way: Never seen before like this. Milky way cloud was amazing, flowing from Sagittarius , Cygnus to Cassiopeia. The milky fuzziness was so bright, that any one can mistake it for a normal cloud, but when scanned through my 10x50 binocs, I can see millions of stars in that milky cloud. I have seen pictures of these on my "binocular astronomy" book, or on APOD, but seeing by yourself is an ultimate satisfaction. Also tried to observe the dust lanes of milky way, but wasn't able to see it clearly. Need to study more on this one.

While explaining Ranga about deep sky objects in Sagittarius, we scanned through them with binoculars as well as my 6' telescope.

M7: The Ptolemey's open cluster M7 was visible with naked eye. Scan through 10x50. revealed hundreds of star distributed over 2 deg field. Lots of stars at the center and more widely distributed at outer fringes.

M6: The butterfly cluster can be barely made through naked eye, if you know where to look at, but caught easily through 10x50. M7 and M6 are around 7 deg apart. Both clusters can not be observed in the same eyepiece view as my binocs. Considering the number of stars and distribution of stars in M7, M6 is not that impressive. Not sure why it is called "butterfly".

M22: The Sagittarius cluster is a globular one. Really good through binoculars. It is around 3 deg apart from Sagi-Lambda. With my 6' dob, 32mm eyepiece and 2x barlow, under 80x magnification, it is an awesome view. I can resolve the outer fringe stars clearly. Tried to observe the colors, but all of them seemed to be almost same.. white mainly.. I thought that cluster is divided in 2 parts, 99% is one side. At 7' clock from the main one, has remaining stars like a small open cluster.

M25-23 open clusters and M24 star cloud: North of M22, around 8 deg, lies M25 open cluster. Its located nicely inside a shape of stars like a shell or a logarithmic curve is formed by these stars and M25 is at the center of it. The cluster is typical open cluster. I felt the stars to be yellowish.

Exact west of M25, around 5 deg apart, the star cloud M24 exists. I really don't understand what specific fuzzy object Messier saw here, but i can see the cloud like all other clouds, which are part of Milky way... the interesting part here is I can see the stars inside M24 arranged in an oval shaped heart.

Exact west, little bit towards north, you can see small open cluster of M23. Because of being small, its not as impressive as M25, but still M25-24-23 alignment is good to watch.

M17-Swan Nebula: when I watched M25-24-23 alignment thought binocs, I accidentally saw two fuzzy objects above M24. First one turned out to be M17 swan nebula, while other one to be M16 Eagle nebula.



M17 is like 2 or 3 degrees apart from M24 oval shape. I didn't really understand what it is from my binocs, but the moment my telescope hit on it, I was spellbound. I saw the "swan". The nebulous gas is indeed in the shape of a swan or looks like number "2" to me. I observed it in 80x, 100x and 200x magnifications. The 200x magnification was good, but lack of light/aperture didn't make it good enough, but 100x magnification made it excellent. I saw one star at the head of the swan and two stars aligned in the neck of the swan.

While talking with SDAA president Bob, he showed me the Swan through his 17.5' dobsonian. He explained me the use of OIII filter for nebulas. He showed me the contrast in Swan nebula through this filter. With the filter, the gaseous part of swan nebula was strikingly bright than any other field stars. I think I need to buy the OIII and UHC filter. Thanks Bob !!

Swan nebula was indeed a "holy" site for me :) and finding it through my 6' dob, was the achievement for the day.. to be literally correct,... the achievement for the "night" :) !!

(photo credit: from net somewhere.. this is how it looked from 6" dob, but in black-white)

M16 Eagle nebula: Being impressed by Swan, I moved the dob to Eagle nebula, but I didn't see any fuzziness in this area. I saw the shape of stars to be in the "wing" shape.. the arrangement was like the "marathi number 4"... or the way kids draw the bird in their picture of "nature"... the stars were indeed closer to each other forming this shape. ..but no fuzziness... need to read more about this object.

M8-Lagoon nebula: I have seen this in MTRP, but wasn't really sure if indeed it was Lagoon. From TDS, lagoon was excellent. It is divided in two parts by the "dark" lane. On the right/east side, I saw the open cluster NGC-6530 inside lagoon. On east side, we have two stars parallel to the cluster. At 10'clock position of these stars, we have second component of lagoon which is strikingly bright than the first part. Infact this second component was visible from MTRP. I should have had the OIII filter here. Lagoon through Bob's 17.5 dob was excellent. the dark lane is indeed really wide and you can see the two parts of lagoon so clearly. Because of OIII, the cluster on the first component wasn't that impressive.

M20-Triffid Nebula: I pointed the dob at the location, where M20 is supposed to be, but I wasn't able to see anything fuzzy. I got surprised and checked my location again. but still nothing impressive in my eyepiece. I compared the magnitudes of M20 with M8 and they are of same mag 5. but still nothing in eyepiece... but then i watched it carefully. and i saw really dim fuzziness around a star.. indeed it was there... Around 4' clock position of the central star, two stars form a line, which is exactly next to one of the dark lanes of Triffid. All other lanes were not that clear enough. I tried it with Bob's 17.5' dob, and triffid dark lanes popped immediately through OIII filter.

Overall, M20 fuzziness is not as bright as M8.. I need to verify the magnitudes of both and other people's observations of M20.

All these objects are part of Sagittarius and ...indeed.. Sagittarius is worth to spend plenty of time.

M31 Andromeda-M32-M110 Galaxy Triplet: I have watched Andromeda Galaxy - M31 from my home, but from TDS it was just beautiful. The core of the Galaxy is like bright cotton and the outside is like dispersed cotton. The outside bright haziness continues everywhere, mainly across the horizontal axis of the galaxy. The whole eyepiece was full of just this haziness. Wasn't able to resolve anything inside Andromeda.

Got a chance to watch Andromeda through Bob's 17.5' dob. Instead of going deep into Andromeda, he pointed me to Andromeda's satellite galaxies.. M32 and M110. M32 was around 1 deg apart due east. It looks like small globular cluster. compared to Andromeda, it is like 1/5th in size, circular in shape. M110 was 1 degree apart form Andromeda due north-west, It is almost parallel to Andromeda but I think it was on the edge view for us and indeed more elongated than Andromeda. Need to verify these things.

I tried the triplet again through my 6' dob, and indeed with lowest magnification of 38x, I was able to put all 3 of them in the same eyepiece view.

M33- Triangulum Galaxy: In my first attempt i wasn't able to locate Triangulum. Scanning through binocs also was a failure. But Ranga found it for us and kind of mentioned the location and i was able to see some fuzziness through my binocs. I pointed the dob towards it and i indeed saw the fuzziness, but i really didn't pay careful attention to this object. Later i spotted Pegasus constellation and confirmed the location of M33, and indeed the fuzziness which we saw before was Triangulum. This galaxy is the most distant naked eye object that can be seen from the earth. Need to watch it more carefully next time.

Perseus Double Cluster:
Visible Naked eye object. I think magnitude is same as M7 cluster. Individual cluster as such is really small, but both being together makes it naked eye object.

M57-Ring Nebula:
With OIII filter on Bob's 17.5' dob, it was a good sight. All other field stars were dim. but still the rng was somewhat fuzzy. Infact i felt it like a hazy blue-white color disk rather than a ring. Bob/Rick blamed the "seeing" conditions.
with my 6' dob, I caught M57 in first shot. Indeed it was awesome. I was barely able to make out the color, but ring was surely visible. but considering "seeing" conditionals, i think I had a better view on this one from MTRP than TDS.

M27-Dumbbell Nebula:
with my 6' dob, dumbbell was an easy catch, but it was just some haziness to me. Didn't see any dumbbell shape. Better luck next time.

M2 - Globular:
M2 was the only object I watched through 22' SDAA scope. It was beautiful. The core of M2 was strikingly bright. Was able to resolve most of the stars on the fringes of the cluster. All stars seem to be yellowish.. hmmm.. not sure why..

M13 - Hercules globular cluster:
It to a while to locate M13 through 6' dob. I think I attempted it at wrong time. It was located way high in the sky. Ranga also tried it, but didn't work. After my 3 attempts, I found it, but somehow it wasn't that impressive as compared to M22. I had really high hopes from M13 being it better than M22. I am not sure why it happened.

Infact overall I think whatever objects I saw in the the later half of the night, weren't much clearer. Probably "seeing" to blame to, but milky way cloud was still strikingly bright. so i really can not say that "seeing" was bad... hmmmm i think more experience and more observation times will answer it by itself !!

On the planets side,

Jupiter: It was the first one of the night to look at. 3 satellites, two being on the extreme end, while one being closer to it, was a nice view. Really clear sky conditions, pointed out the bands on the Jupiter clearly. I have seen them before, but not as bright as this one. They were brown and in the northern hemisphere of Jupiter, just above the equator.

Uranus: First time of my life, I watched Uranus through Bob's 17.5' dob. It was indeed a bluish disk. but somehow the image wasn't as clear. I tried to focus, but it didn't work. (Bad seeing??) Bob mentioned that he watched Uranus's moon the previous day, but we weren't able to see anything. He blamed for bad "seeing". I didn't know the precise location of Uranus, so haven't attempted it through my 6' dob.

TBD:

- Read more and observe Milky way dust lane
- Star colors in M7 through telescope.
- M6 called "butterfly" .. why ?
- M28 next to Saggi-Lambda.
- Read more about OIII and UHC filters and lists of objects to be viewed through the filter.
- M24 star cloud.. what is it ?
- M19 Eagle nebula... is it supposed to be fuzzy ?
- M8-M20 magnitudes and other people's observations.
- M33 careful observation for next time
- Uranus
- Wild duck cluster. Somebody was talking abt it really loud, during the star party. What/where it is ?
- M2 through my 6' dob.