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01-03-2017, 12:16 PM
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Join Date: May 2012
Location: Melbourne Australia
Posts: 467
Galaxy-eating monster CG4
Not a pretty sight! But unusual...
Of course the galaxy is about 100Mly distant, and the cometary is 1300ly.
This image awaits more data, as it is surprisingly faint. The cloud barely showed up on the colour subs.
Shot under fair conditions - windy, SQL 20.9, seeing 3".
ASA10N at f/6.8; Moravian G3-16200; Astrodon filters; ASA mount.
4 hours total exposure, L,R,G,B 1 hr each all binned x2. Plate scale 1.4"/px. FOV approx 40' x 32'
Mark
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01-03-2017, 06:06 PM
My God it's full of stars
Join Date: Mar 2012
Location: Melbourne
Posts: 3,279
Good start Mark! It's a cool target.
It's also very, very dim- I threw 3 hrs LRGB from a tassie dark site & 8hrs Ha at it when I attempted it last year and it still needed more after that.
I look forward to your finished project
01-03-2017, 06:42 PM
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Yum!
01-03-2017, 07:15 PM
Highest Observatory in Oz
Join Date: May 2006
Location: Canberra
Posts: 17,682
Looking good Markas
such a cool target this one that galaxy makes it, but yep, it's certainly on the fainter side
Mike
01-03-2017, 08:37 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
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Looking really good!
Nice star colours too.
02-03-2017, 09:05 AM
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Join Date: May 2012
Location: Melbourne Australia
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M&T, Mike, Peter, Andy,
Thanks for the encouragement. I think the best line to take from here will be to go after lots more L as first priority.
Andy, I'm interested in your going after Ha. Was it rewarding at all?
Mark
02-03-2017, 12:00 PM
My God it's full of stars
Join Date: Mar 2012
Location: Melbourne
Posts: 3,279
Quote:
Originally Posted by
markas
Andy, I'm interested in your going after Ha. Was it rewarding at all?
Hi Mark the link to my image is
HERE
Up to you to decide on adding Ha but I think it adds some depth to the image.
This is on my list to reprocess and gather yet more LRGB as well, but not this year!
Cheers
Andy
02-03-2017, 09:19 PM
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Excellent work, Mark. Looking forward to the result with more data.
03-03-2017, 09:33 AM
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Location: Sydney
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That's a great image Mark. I like your setup too.
Greg.
04-03-2017, 02:14 PM
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Join Date: May 2012
Location: Melbourne Australia
Posts: 467
Greg and Rick,
Thanks for the comments.
My attempt to get more data Thursday and Friday nights was ruined by some very cranky weather - haze, fog, drizzle, high winds, and what seemed to be widespread dust..... so I hope late March is better. Otherwise it's going to be a long!
Mark
04-03-2017, 02:59 PM
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Looking terrific so far
would be great to see a full scale image.
06-03-2017, 09:29 AM
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Thanks Michael,
I just hope I can get the needed data this year!
Mark
06-03-2017, 09:52 PM
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Location: Glanmire, NSW
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A great object to work with Mark. It is and will be a rewarding project. Thanks for sharing.
09-03-2017, 10:41 AM
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Join Date: May 2012
Location: Melbourne Australia
Posts: 467
Thanks Rodney. These CGs - apart from CG12, which is easy, are quite a challenge.
Mark
09-03-2017, 03:06 PM
Have scope will travel!
Join Date: Jan 2009
Location: Pitnacree NSW
Posts: 1,501
Cool as image.
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