Towards Messier Finishing III

..


M33
M31

Blue snowball - lil hard to find again

Showed some objects to Aparna before leaving: M31, M57, Jupiter, M13

So only 3 messier are missing now.. Here M40 and M102 are indeed misleading numbers in the list. People observe nearby NGC objects to complete the list.

Const M# Type R.A. Dec Mag Size Notes
h m deg m min
Peg 15 Gb 21 30 12 10 7 12 rich, compact
UMa 40 DS 12 22.4 58 5 9 1 DS Winnecke 4, sep 50"
Dra 102 Gb 15 6.5 55 46 12 2x 1 M102=M101, NGC 5866 used

Getting Into The Rhythm - II

Continued..

Andromeda/Pegasus browsing:
M31 Andromeda: M31-M32-M110 fits in edge-to-edge in GSO 30mm superview eyepiece in my dob (40x). The EP itself gives the feeling of dust lane in Andromeda. In Jon's 16.5" with 22T4 54x, Andromeda seems brighter. M110 is definitely bigger and elongated than M32..probably lil fainter though.

M33 Triangulum: Always forget the location. My 9x15 finder shows this one. In 17T4 70x, its fainter. Seemed circular.. Can't see any spiral structure. In Jon's 16.5", 22T4 54x, seems brighter and shape is visible..but missed lot of details.. need to watch carefully next time. TBD

Blue snowball 7662: Easy catch, if you know where to look at. really tiny, but bright. Bluish. which one is bigger Saturn PN in Capri or snowball in Andromeda. I think Saturn PN. TBD.

7331 Edge-on Gal: Was Lil tricky to find it.. I know where to look at, but in 30mm, 40x, its hard to find. The edge on shape shows clearly in 17T4, 70x. Definitely bright, but tiny edge on. If 7331 is so hard to locate and see.. then forget abt Stephan's quintet.. read more on magnitude and size differences. TBD

Little Dumbbell M76: Visited after an year.. little dumbbell is really little. Hard to see any dumbbell shape.. but increasing the magnification indeed helps.. brightness is not deemed.

After this had lil bit of bino and naked eye browsing.. trying to get a perspective on milky way.. how things are aligned wr.t perseus, cassiopea, cygnus, saggi etc. Are Cassi-Perseus in different arm than Cyg+ -Saggi. Lot of Nebs are aligned here.

Double cluster: Nice view in 30mm 40x.

M34 OC: Easy to catch. but just don't remember the shape. very less number of bright stars..

M52 OC: May be lil difficult to catch, because it doesn't have anything prominent..but the lil concentrated stars make it probably easier to find it. Definitely small. apart from faint star concentration, ony one bright star at the edge.. not sure if is the field star or actual cluster star.

M103 OC: Does it have the shape of flower bouquet.. dont remember much. probably around 10-15 bright stars to make that shape.

Hercules Browsing:
M13 GC: simply wow..and really huge in 17T4 nagler 70x. It probably fills up the 60-70% of eyepiece.

Gal next to M13: Indeed faint, but visible in my scope in 17T4 70x. Seemed elongated.. In Jon's scope it was definitely brighter and you can miss it. while observing this galaxy, i realized that to take the full advantage of the Nagler view, i need to take out my glasses. I was voiding it tok eep the visin at 20-20, so Jon and I can watch everything at same time..but becasue of that i was loosing lot of details on the object also. Infact initially i missed this galaxy also, but once i took out the glasses I realized how bright it was as comared to my scope.. surprisingly, removing glasses made a huge difference.

Hercules PN 6210: Remembered this one from 6 moths back and asked Jon to point to it..Its interesting to see how Jon remembers the location so smoothly. Again really really tiny little but bright PN.. Can confuse it with a blue star at lower mags. dont remeber any other details.

Continued..

First Dark Night with Orion XTi 10 - I

Date: 17th Jan 2008, Saturday
Observation Time: 6:00pm to 11:30pm (5:30 hrs)
Location: TDS, CA
Weather: Excellent.. Seeing and Transparency 8/10.. winds picked up around 11pm.
Instruments: New Orion XTi 10, Rick's 12.5" dob, Tony's 8" dob and Bret's 24" dob. Bunch of new eyepieces.
Buddies: Rick, Tony and Bret

Total objects: 40 DSOs + 2 planets
New : 11

Best of the Night: M46 Planetary Nebula and All tiny galaxies in Leo.

First night of the new year.. looks like astronomy for this year started way too early :).. hopefully continues like this..

Objective of the night is to:
- test the new scope
- compare all eyepieces
- check intelliscope performance and functions
- some sky browsing.

Vertical Alignment. Hard.. TDS public pad is indeed slanted a lot.. this is gonna be tricky.. Is vertical stop connection to the scope really required for intelliscope ??

Connected Telerad. Placement is not ideal, but not bad either.. didn't have much choice because of finder location.

Rick from next pad helped to do the collimation with laser collimator.. secondary was lil bit hard to align.. somehow its really tight.. don't know why.. do i need to loose the central screw lil bit ?? ..any way will buy Howe gladder laser collimator this week.. Rick showed me a way to collimate without barlow.. sort of.. he mentioned that barlow is really not required.. only trouble is moving up-down to see and move screws.. that should be okay..

Worst mistake of the night.. Intelliscope battery down.. when i checked the status form home.. it was up.. but i didn't realize that its not good enough to see at night.. i have used this thing in Nov, and it was good.. i must have left it on since then :(..needs new battery now.. the problem was i wasn't able to use it for whole night.. that was one of my objectives at TDS today..zero outcome.. next time !!

Venus: Impressive. 45% phase. Too much waving. Probably scope also wasn't cooled down. MAx magnification with 9mm expanse.. 4.5mm failed.. higher mags didn't help much to see any details.. in the view.. i noticed that when Venus at the edge of eyepiece, it had violet tint on west i.e. bright side. but as the Venus moved to center of the field of view, the violet tinge reduced. Again increased as the movement towards the edge of the eyepiece.. is it indeed eyepiece ?

M42 Orion Nebula: Spent really long time tasting eyepieces.

Tony's celestron axiom 25mm on 8' dob: 82deg field of view.. impressive view.. star crowded sky.. Orion in the middle.. dark tower visible.. trapezoid visible.. second dark tower perpendicular to main one clearly visible..

40mm GSO: View wasn't bad.. 60 deg FOV. but stars at the edge were stretched and looked like streaks.. bad eyepiece at the edges.. Again barrel length was trouble so have to take out the glasses.. second tower wasn't visible..still good view.

32mm E-Lux: Impressive view.. stars were fine. trapezoid barely visible.. i think 3 stars of it visible. second tower was visible, but not yet clear..

25mm 1.25' and 25mm 2': Second tower visible, but not as clearly as tony's. ..hmm eyepiece quality :) .. $150 ?? trapezoid visible.. compared both my 25mm eyepieces. FOV is larger in 2' vs 1.25'.. definitely.. but i felt that 1.25' is lil bit better in contrast as compared to 2'. i was able to focus better on stars with 1.25'.. also m43 nebulous area was better in 1.25'

10mm X-cel: marvelous view.. all nebulous details in second tower visible. Trapezoid 5th star was in. wasn't aware that there is 6th one two..

9mm expanse: surely better field of view.. no other difference than 10mm x-cel.

35mm Teleview Panoptic on ricks 12.5' dob: 07deg FOV. MArvellous view.. second tower was there..lil bit in-out of focus. still picture was marvelous. 3 out of 4 trapezoid visible. Still with high mags didn't see 6th star. rick tried to explain me the location, but didn't find it.

M43: In 25mm dark region within M43 visible.. western part (left) definitely larger than eastern (right)

Perseus double cluster: Rick TV 35mm view impressive.. pinpoint stars.. mine 32mm was fine too.. stars were perfect pint point.. that shows precise collimation..

M31 Andromeda: Rick TV 35mm: Clear view of whole M31..Dust lane was good.. indeed was getting a feeling of it.. M110 and M32 visible.. but too tiny. My 40mm: M32 & M110 wre but too tiny.. but this eyepiece indeed shows the length/glow of m31.. just too large.. dust lane wasn't much impressive. My 32mm showed the dust lane.. but it wasn't as good as rick 35m.. again eyepiece quality..

M33 Triangulum: Forgot the location. Rick got it.. fuzzy object.. no details visible ..m33 thru bret's 24inch and bino-view marvelous.. hydrogen region was visible at right corner.. also watched so many dark lanes in m33.. the whole view was full of it.. also sort of got a 3d perception.. must be because of bino-view. In bino-view mag calculation is different..view was around 150x. thru my 32mm or higher mags, just a fuzzy object, no details visible... aperture helps.

Blue snowball NGC7662: okay.. not that great.. really tiny.. i was expecting more.. compare with Jon's 10' dob.

M81-M82: impressive. M81, on left, seems as big fuzzy.. M82 on right seems edge on.. One tiny galaxy NGC3077 (new) right angled above M81. Used 40mm for finding.. 32mm view good.. 25mm was better and showed the dark edge on M82.. 10 mm possible.. but no other details..impressive view thru Rick's 35mm panoptic 70deg FOV.. Tony's 25mm wasn't that impressive considering 80deg FOV.. too much magnification..

M41 OC in CMa: Visible naked eye - don't remember much.. Thru 40mm: Curved lines

M46-M47 OC pair in Pup: Thru 40mm.. M46-M47 barely fits in same view.. M46 stars are pinpoint and concentrated like double cluster.. while M47 is normal dispersed bright stars. 25inch SDAA scope thru 31mm (2500mm focal) shows a nebula.. impressive view. In the nebula itself there was a concentric circle (i think).. indeed impressive.. Thru my 32mm. barely visible for me.. 25mm impressive.. bluish visible.. cluster and PN in it indeed impressive.. 6mm was still good - 10mm lost it.. M46 farther than M47.. PN is actually not in M46 but much closer to us than OC.

M50 in Mon (new): Yet another OC. Don't remember much.

M93 in Pup (new): Really tiny OC.. salt-paper.. too low on horizon

M36-M38-M37 in Auriga: Quick browse. Was overhead. lil bit hard to catch it.. Visible naked eye m36-m38.. bino view was great for all three.

M44 Beehive OC in Cancer: Thru 40mm eyepiece..impressive.. beehive visible.. but 25mm view better to see beehive triangles.

M67 OC in Cancer: Yet another.. nothing impressive..

M35 OC in Gem (New): SDAA scope impressive.. bright yellowish stars. and tiny OC NGC1258 (new) next to it.. this ngc looked like M93.. fine view in my 32mm also.. seen it before thru binocular

DSO Marathon - Part II

M11 Wild duck cluster: visible naked eye. At 135x, bright tiny yellowish stars. High concentrations of stars for being a open cluster (??). Also didn't see any wild duck shape in there.

M26 & NGC 6712: (New): After M11, 6712 is just next to it. At 135x, tiny bluish GC. M26 was visible thru binocs, but hard to capture in telescope. Accidentally, I left 9mm eyepiece in the view and so not able to find anything. Didn't realize it till I moved to next object. Should have tried with lower mags.

NGC 6441: (New): Tiny globular just next to star G scorpi. (Map 58). Bluish & fainter.

M54: (New) Being a messier object, this GC is really tiny, still bigger than other NGC GCs. Notihng much to say. Just to tick-mark another messier object.

M69: (New): Quick glance to M69. Bigger than M54. Still was fainter as M54. Nothing impressive. Also Saggi was way too close to horizon, so probably I dind't find M54, M69 & 6441 that great.

So being tired, started talking with jon and he kindled my interest with tiny nice objects.

Blue Snowball Nebula: (New): Tiny planetary nebula located in Andromeda. Easy to locate as its next to a bright star. Its like mini M57 ring, but much strikingly bright compared to the size with M57 and that too without filter. The size is probably 1/5th of M57. The bluish color was impressive and better than M57. Tried with my 10” dob. So 38x view shows it, but its so tiny that high chances of interpreting it for blue star..

NGC 253 Galaxy: (New): Just know the location visually, wasn't able to confirm anything from the map. (??). binocular view brightness seemed like M33, but smaller in size. My dob, 38x view and then 76x view really shows the edge-on shape. Its not sculptor dwarf galaxy.

Green Nebula NGC 6572: (New): Tiny planetary nebula in ophiuchus (Map 65), Seemed like bluish in color than green in 12.5 dob. Hard to locate. Smaller than blue snowball nebula. Didn't try it in my dob.

Saturn Nebula: (New) Yellowish planetary nebula in capricorn. Easy to catch. Bigger than snowball nebula. Yellowish color is prominent. Ring and middle darkness visible at 76x. High mags killed it.

Ophiuchus OC browsing (New): Quick bino browsing. (Map 65) Star Beta Ophi → Gamma Ophi → 2 o'clk of Beta is IC 4665 OC → 9 o'clk of Gamma is Cr 350 OC → 2 o'clk of Beta around 6 deg are stars 71 & 72. → 10 o'clk of which is Green nebula 6572 → 11 o'clk of star 71 is OC 6673 and IC 4756 OC.

M72 (New): Tiny globular in capricon. Visble thru binoc. Similar to M54.

M73 (New): Messier mistaken object. Tiny tringular star alignment just next to M72.

M30 (New): Impressive GC. The shape is bizzare. Two parallel lines like H shape merging. Right side vertical line upper end has all stars of GC, like a lollypop :). not sure if the stars in H are part of GC (??) Considering star's H alignment, it seems like they are. Need to spend more time on this one next time (???)

M13: Easy catch with both bino and dob At 38x shows the rich filed of stars and outskirts stars resolvable.. Higher mags increases the beauty.

M92 (New): Fellow GC in Hercules. Easy catch with bino. This one is also impressive as M13 but lil bit smaller. M13 probably being closer seems bigger (or it really is). At 38x, hard to resolve any stars. At 76x, outskirt can be resolved easily.

UGC 10822: Tried to find this galaxy next to M92, but failed: Need to read more (??)

M31-M32-M110: At 38x, the dark lane is visible with averted vision. The core is so bright that it becomes hard to see the dark lane. But 38x indeed shows the bigger size of M31. Probably the dark lane width is bigger than M32 size. With averted vision, I imagined the length of dark lane to really long and nice curvature, than probably it is :-). Need to verify (??). M32 is really tiny fuzzy spot and smaller than M110, but still brighter than M110. Thru refractor, lower mags ~30x & wide-angle, shows the grandness of M31. M32 was almost invisible. But M110 was clearly visible. Again, I think I saw the dark lane of M31.

NGC 404 Galaxy next to Mirach (New): The Beta Andromeda, Mirach, has a small companion galaxy NGC 404. Hard to see at 38x, At 76x, really faint. Fuzziness is also not clear. Seemed like lot of bright dots in concentrated area.

M33 Triangulum: Observed M33 in great detail. With high mags (76x, 150x), with averted vision, the upper arm extending to left is visible. Lower arm extending to right was also visible. Both of them really faint. Lower-right arm vanishes in the middle and ends with bright fuzzy region NGC (??) along with a bright star.

Perseus double cluster: Naked eye. At 38x, both OCs fit in the same view. Upper one seems bigger and wider, while lower is comparatively concentrated. Still, lower one seems to have more brighter stars than upper one.

Had some interesting non-duality discussions, flute session and hot tea break from Jon's wife Francis.

TBDs:
- Buy laser collimator asap
- UHC or OIII filter is must. Investigate on various brands
- Best of NGCs object study