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NGC2685 - Helix Galaxy

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#1 Dynan

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Posted 14 May 2021 - 10:27 PM

6.35 Hours (75 X 300 seconds)
ES ED127CF-FCD100
CEM60 Mount
ASI533MC-Pro w/ Astronomik L-3 UV/IR filter
PegasusAstro Falcon Rotator (No Rotation)
PHD2 OAG Guiding w/ Lodestar X2
Captured with SGP
Calibrated in Astro Pixel Processor
Processed in Star Tools

 

It's a small one, and I don't think I can squeeze much more detail out of it.

 

NGC2685_HELIX_GALAXY.jpg


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#2 elmiko

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Posted 15 May 2021 - 12:45 AM

Turned out great Dynan! It's a tough target!


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#3 Dynan

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Posted 15 May 2021 - 05:41 AM

Thanks, Mike!


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#4 Jim Thommes

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Posted 15 May 2021 - 07:02 PM

Nice image Dynan. I have not seen that kind of galaxy structure before - quite interesting. Great capture.


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#5 Dynan

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Posted 15 May 2021 - 08:15 PM

Thanks, Jim. That's the reason I targeted the Helix Galaxy, even though it was only 1.5' x 0.5' in size.

 

From Wiki:

"It is an object of great scientific interest, because polar-ring galaxies are very rare galaxies. They are thought to form when two galaxies gravitationally interact with each other. "The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring. Still, observed properties of NGC 2685 suggest that the rotating ring structure is remarkably old and stable."

 

The only stranger thing I've seen is Hoag' Object (PGC54559), a Ring Galaxy. I'll be processing my data on that one soon. It's so small I don't think I'll get much resolution of it. I believe it's the only ring galaxy in the visible sky...except for the one that can be seen through the ring of Hoag's Object!

 

https://en.wikipedia...i/Hoag's_Object


Edited by Dynan, 15 May 2021 - 08:15 PM.


#6 Dynan

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Posted 15 May 2021 - 08:43 PM

And here's the best I could do with Hoag's Object... 28" x 28". Maybe the 'Big Boys' with a C11 or C14 can get a better shot.

 

HOAGS_OBJECT.jpeg

 

It's quite a strange object, as described in the Wiki. Can't find out much else about it.

 

This was at 0.817 "/px image scale. I might try with my ASI183 at 0.52 "/px. A lot of effort for a little circle. lol.gif


Edited by Dynan, 15 May 2021 - 08:46 PM.


#7 Hobby Astronomer

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Posted 15 May 2021 - 08:46 PM

You got it.

 

Very good image and your stars are perfectly round.

 

HA




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