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Old 02-03-2008, 05:41 PM
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Tamtarn
Barb and David

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NGC 4372 Golden GC with Doodad & M104

Two great nights out here so we had two great sessions. Still have 2 other images to process yet.

NGC 4372 GC in Musca One of our favourite GC's at the end of the Dark Doodad. It's in a rich starfield of yellow stars in a dusty area in Musca which accounts for the small number of hot blue stars. There's quite a few other dark troughs here and there. Unusual little trails of stars in the cluster forming patterns.

M104 Sombrero Galaxy Only two subs taken last night as we ended our earlier session on another DSO. The moon had risen and the wind had been gusty all night so we gave it a try just to end the session.

Details
Canon 40D --- Skywatcher 8"Newt --- PHD Guided with Skywatcher 70x500 and DSI pro

1ST IMAGE 3 x 7min Lights 2 x 7min Darks ISO800

2ND IMAGE 2 x 7min Lights 2 x 7min Darks ISO800 Crop

Stacked DSS Processed PS CS2

Higher res here http://barb.david.1.googlepages.com/home

Click image for larger version

Name:	NGC4372-GOLD-CLUSTER[900]IIS.jpg
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ID:	39352 .... Click image for larger version

Name:	M104Sombrero-[900]IIS.jpg
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ID:	39353

Last edited by Tamtarn; 02-03-2008 at 07:21 PM.
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  #2  
Old 02-03-2008, 07:14 PM
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Lovely work.. I love globs, and your Sombrero is amazing. Better than the one in Stellarium that's for sure Love the detail. I'm definitely getting out tonight.
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  #3  
Old 02-03-2008, 07:34 PM
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Very nice Barb and Dave!
Nice color balance and nice and round stars.
I can`t belief how smooth those images look for only 2 or 3 subs!
You must be lovin that 40D
cheers Gary
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  #4  
Old 02-03-2008, 07:41 PM
Alchemy (Clive)
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Fascinating star patterns , plus the nebulous shading in the background sugests some intersting physics in that glob area.

The sombrero is so smooth for only 2 shots........ i know the sky in the yarra valley is superb with good clarity, low light pollution (gee wished i lived there) but youve done a lovely job with that image.

love the star colours

cheers Alchemy
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  #5  
Old 02-03-2008, 08:27 PM
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Barb and David

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Quote:
Originally Posted by programmer View Post
Lovely work.. I love globs, and your Sombrero is amazing. Better than the one in Stellarium that's for sure Love the detail. I'm definitely getting out tonight.
Hope the cloud keeps low and we'll be out there too

Quote:
Originally Posted by Garyh View Post
Very nice Barb and Dave!
Nice color balance and nice and round stars.
I can`t belief how smooth those images look for only 2 or 3 subs!
You must be lovin that 40D
cheers Gary
Thanks Gary the 40D is a beauty A lot less processing needed as the subs are very clean.

Quote:
Originally Posted by Alchemy View Post
Fascinating star patterns , plus the nebulous shading in the background sugests some intersting physics in that glob area.

The sombrero is so smooth for only 2 shots........ i know the sky in the yarra valley is superb with good clarity, low light pollution (gee wished i lived there) but youve done a lovely job with that image.

love the star colours

cheers Alchemy
The area around this glob is really interesting and the star patterns within the glob are a feature.

YV not bad these past few nights eh

Thanks for the favourable comments
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  #6  
Old 02-03-2008, 10:48 PM
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pvelez (Pete)
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Very impressive guys. I'll give the sombrero a go tonight on the back of your work

Pete
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  #7  
Old 02-03-2008, 10:52 PM
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strongmanmike (Michael)
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You guys are doing some excellent imaging lately.

I like the framing of M104 - not centred and appears at an angle = looks like a distant UFO and gives the image some depth, not bad for just 2 X 7min subs either

The Musca glob is also one of my favourite globs because of that nice bright blue star next to it and the group of yellow and blue stars nearby.

Mike
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  #8  
Old 02-03-2008, 11:30 PM
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Wonderful images guys, that 40D is certainly working a treat for you.

Cheers
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  #9  
Old 03-03-2008, 05:13 AM
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glenc (Glen)
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Nice images Barb and David, I am almost tempted to try imaging myself. I did a magnitude estimate on 4372 a while back because I think the published values are wrong. http://www.iceinspace.com.au/forum/s...highlight=4372
This is the first description of Dunlop 67 = NGC4372 "A star of the 6th magnitude, with a beautiful well-defined milky ray proceeding from it south following; the ray is conical, and the star appears in the point of the cone, and the broad or south following extremity is circular, or rounded off. The ray is about 7' in length, and nearly 2' in breadth at the broadest part, near the southern extremity. With the sweeping power this appears like a star with a very faint milky ray south following, the ray gradually spreading in breadth from the star, and rounded off at the broader end. But with a higher power it is not a star with a ray, but a very faint nebula, and the star is not involved or connected with it: I should call it a very faint, nebula of a long oval shape, the smaller end towards the star; this is easily resolvable into extremely minute points or stars, but I cannot discover the slightest indications of attraction or condensation towards any part of it. I certainly had not the least suspicion of this object being resolvable when I discovered it with the sweeping power, nor even when I examined it a second time; it is a beautiful object, of a uniform faint light." James Dunlop, Parramatta, 1826
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  #10  
Old 03-03-2008, 04:00 PM
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Tamtarn
Barb and David

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Quote:
Originally Posted by pvelez View Post
Very impressive guys. I'll give the sombrero a go tonight on the back of your work

Pete
Thanks for commenting. Hope you had a chance to get out Pete

Quote:
Originally Posted by strongmanmike View Post
You guys are doing some excellent imaging lately.

I like the framing of M104 - not centred and appears at an angle = looks like a distant UFO and gives the image some depth, not bad for just 2 X 7min subs either

The Musca glob is also one of my favourite globs because of that nice bright blue star next to it and the group of yellow and blue stars nearby.

Mike
Mike we'll have to do more subs of Sombrero soon it seemed to come up pretting well with just the two. We appreciate your positive comments

Quote:
Originally Posted by Ric View Post
Wonderful images guys, that 40D is certainly working a treat for you.

Cheers
Really love it so far

Quote:
Originally Posted by glenc View Post
Nice images Barb and David, I am almost tempted to try imaging myself. I did a magnitude estimate on 4372 a while back because I think the published values are wrong. http://www.iceinspace.com.au/forum/s...highlight=4372
This is the first description of Dunlop 67 = NGC4372 "A star of the 6th magnitude, with a beautiful well-defined milky ray proceeding from it south following; the ray is conical, and the star appears in the point of the cone, and the broad or south following extremity is circular, or rounded off. The ray is about 7' in length, and nearly 2' in breadth at the broadest part, near the southern extremity. With the sweeping power this appears like a star with a very faint milky ray south following, the ray gradually spreading in breadth from the star, and rounded off at the broader end. But with a higher power it is not a star with a ray, but a very faint nebula, and the star is not involved or connected with it: I should call it a very faint, nebula of a long oval shape, the smaller end towards the star; this is easily resolvable into extremely minute points or stars, but I cannot discover the slightest indications of attraction or condensation towards any part of it. I certainly had not the least suspicion of this object being resolvable when I discovered it with the sweeping power, nor even when I examined it a second time; it is a beautiful object, of a uniform faint light." James Dunlop, Parramatta, 1826
Glen we would agree with you on this lovely glob it seems dimmer than first described by Dunlop.
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