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Astrophotography and Sketching >> Sketching

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lunar
Carpal Tunnel


Reged: 07/03/10

M51 - The Whirlpool Galaxy new
      #4536932 - 04/22/11 03:56 PM Attachment (96 downloads)

I just happened to step outside last night around 10pm, and guess what I saw? Black, clear, and crisp skies! I could hardly believe my eyes, so I ran and got my things and went outside. I looked at the Whirlpool for a little while, saw it's spiral arms and immediately began sketching. The whole field was pretty sharp, and with averted vision I could see quite a bit of detail and more spiral structure than I've ever seen before. Hopefully I'll get another shot at this while it's still near zenith because there was a lot of problems with reflections cast into the field due to the nearby suburban lights.

Questions, Comments & suggestions are always welcome

Clear Skies,
Brandon Doyle


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Astrojensen
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Reged: 10/05/08

Loc: Bornholm, Denmark
Re: M51 - The Whirlpool Galaxy new [Re: lunar]
      #4536940 - 04/22/11 04:01 PM

That's a very nice sketch! Thanks for sharing.


Clear skies!
Thomas, Denmark


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lunar
Carpal Tunnel


Reged: 07/03/10

Re: M51 - The Whirlpool Galaxy new [Re: Astrojensen]
      #4536950 - 04/22/11 04:08 PM

Thanks for the kind compliment, and I wish you the best of luck with your observations & sketches too

Brandon Doyle

Edited by lunar (04/22/11 04:08 PM)


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hbanich
Pooh-Bah
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Reged: 06/17/05

Loc: Portland, Oregon
Re: M51 - The Whirlpool Galaxy new [Re: lunar]
      #4536953 - 04/22/11 04:09 PM

Excellent sketch Brandon, it looks like a faithful reproduction of what you saw. I'm impressed that you didn't depict the connection between NGC 5194 and 5195 as a discrete line like the brighter areas of the spiral arms, but as a diffuse glow.

Next time you observe M51 you might want to try seeing the sharp bend in the northern spiral arm in the area between the cores of 5194 and 5195. Photos show this sharp bend quite well, and I'll bet you'll see it too if you look for it. Good luck!


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niteskystargazer
Carpal Tunnel
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Reged: 10/05/09

Loc: 41-43'-28" N 87-42'-39" W
Re: M51 - The Whirlpool Galaxy new [Re: lunar]
      #4536966 - 04/22/11 04:20 PM

Brandon,

, your beautiful sketch of the Whirlpool Galaxy

CS,KLU,

,

Tom


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lunar
Carpal Tunnel


Reged: 07/03/10

Re: M51 - The Whirlpool Galaxy new [Re: niteskystargazer]
      #4537031 - 04/22/11 04:48 PM

Thank you for the compliments

And Howard, thank you for the suggestion! I'll make sure I look into that detail then next time I have this in the eyepiece. I might even just sketch it all over again!

Thank you & clear skies,
Brandon Doyle


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: M51 - The Whirlpool Galaxy new [Re: lunar]
      #4537083 - 04/22/11 05:09 PM

That is a superb image, especially considering the less than ideal stray light conditions that you were observing under. Very nice sketch!

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JayinUTModerator
I'm not Sleepy
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Reged: 09/19/08

Loc: Utah
Re: M51 - The Whirlpool Galaxy new [Re: Mentor]
      #4537894 - 04/22/11 11:37 PM

Nicely done. Your arms are distinct and the halo is evident. Again, terrific job.

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frank5817
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Reged: 06/13/06

Loc: Illinois
Re: M51 - The Whirlpool Galaxy new [Re: JayinUT]
      #4537947 - 04/23/11 12:34 AM

Brandon,

A very fine capture of M51 and NGC5195.
You did indeed capture much detail.

Frank


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TenthEnemy
scholastic sledgehammer


Reged: 01/21/08

Loc: Maryland
Re: M51 - The Whirlpool Galaxy new [Re: frank5817]
      #4538013 - 04/23/11 01:25 AM

That is a very accurate representation of how M51 looks in a 10" telescope.

NGC 5195 actually has some details as well, but it requires a bit more magnification than M51. I've found my best views of M51 to be between 150 and 200x, and my best views of 5195 between 250 and 300x.


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CarlosEH
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Reged: 01/19/05

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Re: M51 - The Whirlpool Galaxy new [Re: TenthEnemy]
      #4538030 - 04/23/11 01:43 AM

Brandon,

An outstanding observation of the Whirlpool Galaxy (M51). You have captured the delicate spiral arms and bridge very nicely. Thank you for sharing it with us all.

Carlos


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azure1961p
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Reged: 01/17/09

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Re: M51 - The Whirlpool Galaxy new [Re: CarlosEH]
      #4538258 - 04/23/11 07:58 AM Attachment (26 downloads)

Brandon,

Thats a really nice smooth sketch - you really nailed the subtle nature of the deepsky look of it, the crisp nuclei and the arms glowing from out of the haze. A really satisfying sketch to behold. Moreover, you have shown 5195's nucleus to be sharper than 5194's - exactly how i see it with my 8. 5195 will have this amazing crisp stab of light when the seeing settles - then it goes to hell a second later and it softens a bit - Ive always appreciated 5195's nucleus for its unique clarity. Below I inverted your sketch to lend it a deep[er]sky look - hope you dont mind!

Pete

Edited by azure1961p (04/23/11 09:06 AM)


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Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Re: M51 - The Whirlpool Galaxy new [Re: CarlosEH]
      #4538259 - 04/23/11 07:58 AM

Fine sketch. Personaly, I prefer a black background...

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Rutilus
Carpal Tunnel


Reged: 12/17/10

Re: M51 - The Whirlpool Galaxy new [Re: Jef De Wit]
      #4538346 - 04/23/11 08:59 AM

Brandon - A most beautiful sketch indeed.

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lunar
Carpal Tunnel


Reged: 07/03/10

Re: M51 - The Whirlpool Galaxy new [Re: Rutilus]
      #4539609 - 04/23/11 08:38 PM

Thanks for all the compliments

And I really do appreciate you inverting the colors of my sketch azure1961p. The reason I don't do this anymore is because the monitor of the computer I use isn't very good & I find it difficult to see anything against a black backround. Plus, if I was to invert it myself I'm not sure how the brightnesses and contrasts would look on your computer monitors as compared to mine. For this reason, I just keep it on a white backround.

Once again, thank you,
Brandon Doyle


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JayKSC
Carpal Tunnel
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Reged: 01/01/05

Loc: Florida
Re: M51 - The Whirlpool Galaxy new [Re: lunar]
      #4539869 - 04/23/11 10:40 PM

Great sketch of this galaxy duo, Brandon - I especially like it with the inverted background Pete provided. As others have mentioned, you've done good work capturing the subtle light differences in the main galaxy and its diffuse halo as well as with the companion's sharper core. With my 150mm scope under modestly dark skies, NGC 5195 takes on a boxy but quite bright glow - seemingly brighter than NGC 5194. This is probably an illusion caused by the light gradients.

Thanks for posting!

- Jay
South Florida


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IVM
Pooh-Bah


Reged: 01/07/08

Loc: Western New York
Re: M51 - The Whirlpool Galaxy new [Re: lunar]
      #4541224 - 04/24/11 03:01 PM

Very nice, thanks for posting. It was interesting to compare with my observation on the same night (which indeed surprised with usably clear skies) from North-Central PA. I am going to post it in my blog and for discussion in the deep sky forum here. The sharper nucleus in NGC 5195 and the issue of how exactly the northern arm of NGC 5194 continues (or doesn't) over the companion, which were brought up in this thread thanks to your drawing, are indeed interesting visual features of this double system, and I like the meticulous depiction of them in your drawing.

I find that raising the "output black" level in the Photoshop "Levels" dialog after inverting helps ensure visibility of faint detail on a wider variety of monitors. I.e. making the sky not black but dark grey - which usually is also realistic for typical deep-sky apertures and magnifications.


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lunar
Carpal Tunnel


Reged: 07/03/10

Re: M51 - The Whirlpool Galaxy new [Re: IVM]
      #4543809 - 04/25/11 07:13 PM

Thanks for the compliments And I can't wait to see your sketch of M51 & NGC 5195 IVM, I'll bet it's pretty sweet. Through my 10" reflector the spiral arm that connects these two objects seemed...broken, in a way, or like it wasn't continuous. I'm always wondering these days about what a through a much larger telescope than mine would do to all the deep sky objects I've sketched, and what it might reveal in objects that I've never seen before, and couldn't possibly see in this aperture. Like say, the jet coming out of the nucleus of M87, which I've always dreamt of seeing. However, I've read that 20" of aperture - minimum - is required to see this. Maybe averted vision wouldn't even be required in a 'scope that large to see the arms of M51, and extensive detail could be seen, not just dim lines representing the arms.

Anyways, once again thanks for te compliments:)

Clear Skies,
Brandon Doyle


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Carol L

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Reged: 07/05/04

Loc: Tomahawk, WI 45N//89W
Re: M51 - The Whirlpool Galaxy [Re: lunar]
      #4548669 - 04/27/11 10:20 PM

Excellent observation, Brandon! Impromptu sessions are fun, especially when you get such a sweet view. Here's hoping you get another chance real soon.

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