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Old 07-October-2008, 12:36 AM
RickJ RickJ is offline
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Default The Saturn Galaxy

I nominate NGC 6470 to be called The Saturn Galaxy. It even has an E ring. It sits among other galaxies of various distance. NGC 6470 is the nearest of those I was able to get NED data on. It is a bit over 60 million light years away. Thus it is a very small spiral but not classed as a dwarf. Below it is NGC 6471. While it appears about the same angular size as NGC 6470 it is about 350 million light years away so about 6 times larger than NGC 6470. But the elliptical to its west appears the largest of the group and in fact is. It's red shift shows a distance of 530 million light years! It must really be a huge elliptical! I wasn't able to get red shift data for most of the others in the image. I have posted a finder chart showing the ID of the brighter galaxies in the image. I intentionally put NGC 6470 to the side of the image in order to capture as many bright galaxies as possible.

The night was horrible with 4" FWHM seeing and very poor transparency with strong wind gusts. That I got anything amazes me.

The full uncropped image with less compression is at:
http://www.spacebanter.com/attachmen...6&d=1223320472

14" LX200R @ f/10, L=4x10', RGB=2x10' binned 3x3, STL-11000XM, Paramount ME

Rick
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File Type: jpg NGC6470LUM4X10RGB2X10X3ID.jpg (42.2 KB, 47 views)
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Old 07-October-2008, 04:01 AM
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Lovely little group showing a range of galaxy types. Good work in that wind! Thanks.
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Old 07-October-2008, 05:00 AM
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Very cool. Did you know a supernova was reported in that galaxy in by T. Puckett and A. Langoussis?
http://www.cfa.harvard.edu/iauc/07400/07424.html#Item1
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Old 07-October-2008, 05:55 AM
RickJ RickJ is offline
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No I hadn't looked that deeply into this guy. I missed it by only 8 years. I've come within 27 hours of finding one first but that's the best I've done. Seems if you image fields with lots of galaxies one is seen every few months but they are usually weeks old. Since I often am not around when the data comes in and only look at it weeks later it's unlikely I'll ever discover one. I've imaged several "new" asteroids but either weather prevented follow up or more often I see them in the data weeks too late for follow up. Procrastination has its drawbacks.

Rick
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Old 07-October-2008, 06:28 AM
kvwood kvwood is offline
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Terrific galaxy field Rick. I'll second your vote...it does look like Saturn. Well done with challenging conditions.

Kent
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Old 07-October-2008, 03:13 PM
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I like the name.
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Old 07-October-2008, 08:47 PM
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I am not sure if you have captured something, I have noticed a faint streak near PGC 60721, might be something or nothing!
Take a look at your first image and enlarge it, it is at the bottom right.

Great picture Rick BTW.

clear skies

chrissy
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Old 08-October-2008, 05:55 AM
RickJ RickJ is offline
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That's a piece of space junk. With only 4 lum frames sigma routines aren't all that effective for removing them. A trace was left over. Sometimes I leave them in, other times I clone them out or as in this case try to use the sigma clip combine to do it. Space junk is very common. About one in 4 of my frames have a streak from space debris in them. It's getting awfully crowded up there. I keep expecting some disaster but so far we've been lucky and not lost anyone though a satellite or two has been lost to a debris hit I believe.

Rick
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Old 13-October-2008, 05:14 AM
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Rick,

Yet again another great combination of Astronomy education and great imaging.

--Andy
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Old 15-October-2008, 08:58 PM
JAICOA JAICOA is offline
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A very Beautiful and populated section of the sky with these distant galaxies. An d that saturn galaxy surly is nice. Again Rick you have a fine keeper here. Very impressive and Clear Skies.
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