JayinUT
I'm not Sleepy
Reged: 09/19/08
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Re: Show me your Current Leo Triplet Sketch
[Re: CarlosEH]
#3009434 - 03/28/09 09:13 AM
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Jeff,
The detail you captured in both M65 and 66 is wonderful. I really like the inner core region in M65 in your sketch.
Starquake,
I enjoy your capture of these three and really like how your NGC 3628 has a three d. look to how it is laying on the sketch.
I like and enjoyed comparing them to my capture from Jan. 30th. I want to do a new capture and sketch but the weather just isn't cooperating with me. ::sigh::
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: JayinUT]
#3011165 - 03/29/09 06:22 AM
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Thanks, Carlos and Jay!
I've still a bit of research to do on that M65 core. The center condensation is the galaxy core, while the one to the right is a foreground star. But the other side is too overexposed in all the images I've looked at, so I'm not yet sure whether it's another foreground star, a clump or HII region in the galaxy, or just a trick of the eye.
Cheers,
-- Jeff.
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frank5817
Postmaster
Reged: 06/13/06
Loc: Illinois
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3011560 - 03/29/09 11:19 AM
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Hey Jim,
This is a great thread you have started here. Many, many fine galaxy sketches posted by the very best sketchers at CN.
Frank 
Edited by frank5817 (03/31/09 10:36 AM)
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varmint
I invite more abuse
Reged: 02/10/07
Loc: Pacifica, CA, USA
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Re: Show me your Current Leo Triplet Sketch
[Re: frank5817]
#3015188 - 03/30/09 11:44 PM
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Thanks Frank, I had really hoped that I could be posting the Trio by now, but with the frantic pace of running the Messier Marathon this past weekend my head just wasn't in the game (so to speak) for sketching.
Though I do have to say the views were absolutely incredible at the dark site we observed from. If you took Jeff Young's individual sketches and put them in a single FOV, there was that much detail in my 80ED! Simply amazing, and depressing at the same time. Depressing because I now have "Dark Site Envy" and know that I'm not likely to ever see that much detail from my backyard...not unless I up the aperture to something ridiculous...
Tomorrow looks to be available, though I'm concerned that my transparency is listed as below average, but I'll give it go.
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JayinUT
I'm not Sleepy
Reged: 09/19/08
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Re: Show me your Current Leo Triplet Sketch
[Re: varmint]
#3015655 - 03/31/09 09:14 AM
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Jim,
I agree, great thread you have going. I just wish the skies would settle down and allow me a night to go. I worry about that the sky will clear up next week and the moon will be too bright by then to get a good view. ::Sigh:: the good news is I am off for the month of April through I'll be on vacation with the family for one of those weeks so I should be able to get time for some good sessions weather permitting.
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varmint
I invite more abuse
Reged: 02/10/07
Loc: Pacifica, CA, USA
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Re: Show me your Current Leo Triplet Sketch
[Re: JayinUT]
#3052002 - 04/19/09 03:41 AM Attachment (63 downloads)
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Yeah! At long last I *finally* got a chance to sketch the Leo Trio/Triplet.
Below is my effort.
Observing Details:
C9.25 with 31mm T5 Nagler (76x, ~1 deg FOV)
Transparency wavered from horrible to decent, typical was about 4/9.
Seeing was average 3/5
During the middle of my pre-sketch observation time a satellite drifted through the FOV cutting through the middle of the Trio. It brightened and dimmed a few times through it's travels.
I captured it's path as a line with various darkness to highlight where it brightened and dimmed in it's travels through the EP.
NGC 3628 was very faint, but noticable. With averted vision I could discern the central core and the thin wispy extension of the galaxy. M65 and M66 were partially direct vision, but averted vision showed M66 to be more circular than cigar shaped. There appeared to be a central bar in M66 that was almost in the same line as the brighter stars surrounding it.
Looking at how I sketched the trio, it looks like an upside down smiley face that has a black eye (hence not so smiley...).
I hope you enjoy this, I couldn't pull out much more detail even when I tried going to higher magnifications. The transparency and seeing were just not very good tonight.
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: varmint]
#3052888 - 04/19/09 03:38 PM
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Cool sketch, Jim. (And that's a pretty good level of detail for a C9.25, poor conditions or not.)
One thing you might try is dragging a lasso selection around the three galaxies, inverting the selection, and then boosting the contrast a bit. That will make you stars brighter without altering the subtle shading of the galaxies.
Cheers,
-- Jeff.
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3052893 - 04/19/09 03:41 PM
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BTW, I finally got out yesterday and bought a bigger sketch pad, so I'm about ready to try and put my composite together.
I inverted the 3 component sketches and boosted the contrast to ridiculous levels for printing in the hopes that I can underlay them under the composite sketch and trace the outlines and star positions. We'll see how it goes....
-- Jeff.
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varmint
I invite more abuse
Reged: 02/10/07
Loc: Pacifica, CA, USA
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3056320 - 04/21/09 12:25 AM
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Thanks Jeff, for the comments and the tip. I did do this in a rush (to get something posted the same night). I'll try shooting the image of it again in better light conditions and tweak it in photoshop a bit more.
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Aaron
sage
Reged: 08/28/06
Loc: Eugene OR
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Re: Show me your Current Leo Triplet Sketch
[Re: varmint]
#3057807 - 04/21/09 05:05 PM
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I just happened to do this last night:
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3107046 - 05/15/09 04:35 PM
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Quote:
BTW, I finally got out yesterday and bought a bigger sketch pad, so I'm about ready to try and put my composite together.
I inverted the 3 component sketches and boosted the contrast to ridiculous levels for printing in the hopes that I can underlay them under the composite sketch and trace the outlines and star positions. We'll see how it goes....
-- Jeff.
I got the background stars done today. I took the printout of the wide-field view and taped it to the back of my sketch paper, held it up to a window, and traced all the stars.
I then took it apart, taped the three individual galaxy sketch printouts to the wide-field printout, and then reattached the whole shebang behind the "big" sketch. I was actually surprised at how well the field stars lined up in the 3 individual sketches. M65's were a little off, but mostly because I appear to have scaled the printout slightly wrong (it was done at 150X while the other two were at 175X).
Anyway, I had to stop there as the light was fading and with three sheets of paper to go through instead of 2 I couldn't see well enough to trace in the galaxies.
More tomorrow....
-- Jeff.
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JayinUT
I'm not Sleepy
Reged: 09/19/08
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3107601 - 05/15/09 10:59 PM
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Jeff,
I am enjoying your description of how you are putting the composite together. I haven't had a good night in over a month now unless I were to get up at 3:00a.m. and setup and observe from 4:00a.m. until 6:00a.m. but with work, that won't work.
It should clear up this weekend so I am hopeful . . . . guess that is what I get for buying a new observing chair, making 6 light shields and buying a new dob.
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: JayinUT]
#3107971 - 05/16/09 05:29 AM Attachment (76 downloads)
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Jay --
Up here at 54°N our darkness is done for the summer. Some of the brighter targets will poke through the astronomical twilight, and the planets are certainly fine, but there won't be much in the way of galaxies to see until late Aug when it starts getting fully dark again.
At the risk of costing you *more* money, have you tried h-alpha solar viewing?
Just to keep things on subject, here's the composite taped up to the window. Even in daylight (well, the rainy stuff that passes for daylight here) the light didn't poke through 3 layers very well, so I ended up cutting out circles in the wide-field printout where the 3 narrow-field printouts overlapped.
Cheers,
-- Jeff.
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3108195 - 05/16/09 09:35 AM Attachment (68 downloads)
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Here I am copying the galaxy details from the original sketches onto the composite.
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3108198 - 05/16/09 09:36 AM Attachment (81 downloads)
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Here's my putty rubber ("kneadable eraser" in the New World) pinched for doing the dust lane in NGC3628.
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3108695 - 05/16/09 01:48 PM Attachment (77 downloads)
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The finished product.
(Note: 800 pixels isn't really enough to show the detail in this one. Better to zoom out your web browser window and look at it here: http://www.rokeby.ie/observatory/Sketches/LeoComposite.1200.jpg .)
Cheers,
-- Jeff.
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mapofthedead
super member
Reged: 06/01/06
Loc: Cambs, UK
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Re: Show me your Current Leo Triplet Sketch
[Re: Jeff Young]
#3110248 - 05/17/09 10:19 AM
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What a wonderful sketch Jeff, thank you for sharing and going into such great detail on how you achieved it!
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Jeff Young
Post Laureate
Reged: 08/04/05
Loc: Ireland
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Re: Show me your Current Leo Triplet Sketch
[Re: mapofthedead]
#3111000 - 05/17/09 06:00 PM
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Thanks, James!
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