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Old 01-11-2006, 01:38 AM
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rogerg (Roger)
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November Deep Sky Imaging Challenge

I remember stumbling upon this guy and saying to myself "Wow, that's a perfect face-on spiral galaxy! Why didn't I know about this before???"

I'd just love to see it in colour by some of you guy's.

I nominate NGC 1232; Mag: 9.8, Size: 7.4 x 6.5 (arc mins), Transits @ 00:51.

Like last month it's in Fornax (sorry if this isn't good for you! ... I can't leave Fornax at this time of year..). It's quite big and bright so hopefully suitable to most people. It looks like it has a second galaxy perhaps attached or distant? But I can't find an Id for it in TheSky.

I was torn between this and NGC 2442 (the meat hook) which is also spectacular but a little lower this time of year so thought I'd take the safer option (hopefully less trees nearer the zenith!).

Neither are my current style of object (mag 18 fiant little galaxies) but I don't think DSLR users would appreciate me choosing one of them And I'd love to see nice colour in this guy.

Attached is my shot from last year. I'm hoping to take another for this comp though.



Roger.
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  #2  
Old 01-11-2006, 02:17 AM
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Octane (Humayun)
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Roger,

Excellent choice in object.

It appears to be fairly large; hopefully it will be conducive to digital SLRs. If so, I'll give it a go next new Moon.

Regards,
Humayun
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  #3  
Old 01-11-2006, 09:22 AM
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I was hoping it would be friendly for DSLR users, would at least be interested to see what you do get, however big or small.

Roger.
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Old 01-11-2006, 01:42 PM
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Great choice Roger, I think Fornax is starting to come out of the trees now so I will be able to have a go at it. It should make a great image.

cheers
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  #5  
Old 01-11-2006, 07:44 PM
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Striker (Tony)
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Nice choice Roger,

I am also interested too see how the DSLR's go with this galaxy.
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Old 01-11-2006, 11:16 PM
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Yes good choice, as soon as moon goes I will go for it.
Scott
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  #7  
Old 02-11-2006, 04:02 AM
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I took this galaxy with the DSI II not long ago through the 8" F/4. 12 x 84 second. I don't have my scope anymore besides the ED80 so i wouldnt be able to give this ago with the DSLR.
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  #8  
Old 02-11-2006, 06:50 AM
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Cool..... hopefully I'll have my DSI filters by new moon..... might be a tricky one to start the LRGB learning curve though, hang on - still on the L learning curve!
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Old 03-11-2006, 03:54 PM
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Question

Quote:
Originally Posted by rogerg
I nominate NGC 1232; Mag: 9.8, Size: 7.4 x 6.5 (arc mins), Transits @ 00:51.
Starry Night Pro lists NGC 1232 as mag 15.3 angular size 54 arcseconds....
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  #10  
Old 03-11-2006, 04:00 PM
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Quote:
Originally Posted by plasmodium
Starry Night Pro lists NGC 1232 as mag 15.3 angular size 54 arcseconds....
strange!

I hope/think I got the NGC number correct.....

Roger.
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  #11  
Old 03-11-2006, 04:17 PM
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Now that will be a challenge

cheers

PS. I just looked it up and I have it listed as Mag 10.0 in Eridanus
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  #12  
Old 03-11-2006, 04:32 PM
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Wikipedia agrees with you Roger....... don't know what Starry Night is referring to....
Actually - when zooming right in with SNP, they have referred to what I assume is NGC 1232A as NGC 1232 also - and this is picked up as the main galaxy in the wide field views.....
It gives NGC1232 as Mag 9.9 7.8 minutes diam - much better!
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  #13  
Old 03-11-2006, 04:55 PM
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Ahh, well that's interesting to have some info on 1232A... I can't find any info on it in TheSky6. Nice to know it's mag.. 15.3 sounds about right thinking back to my photo.

Roger.
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  #14  
Old 18-11-2006, 11:14 PM
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OK, no colour, but this is my attempt...

Cheers
Stuart
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  #15  
Old 18-11-2006, 11:16 PM
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What did you use for that??? Looks beautiful! Almost like an artists impression, not a photo..... Brilliant effort!
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  #16  
Old 18-11-2006, 11:49 PM
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8" LX200GPS.
f5 with Optec reducer.
SBig ST-7XME.
60 mins luminance.

Cheers
Stuart
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  #17  
Old 18-11-2006, 11:54 PM
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rogerg (Roger)
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Quote:
Originally Posted by rat156
OK, no colour, but this is my attempt...

Cheers
Stuart
That's an excellent photo Stuart! It looks like you have a very good pixel size there for the ST7 - must be about 1.5 arc sec/pixel? Much better than my barely 1 arc sec/pixel, resulting in a much sharper image than I can achieve.

Roger.
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  #18  
Old 19-11-2006, 01:03 AM
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strongmanmike (Michael)
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Past effort

I did this galaxy over two years ago with the 12" SCT and little MX716...maybe I do it again with the SXV-H9 and AP?

http://upload.pbase.com/strongmanmik...55271790/large


Mike
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  #19  
Old 19-11-2006, 07:09 AM
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Quote:
Originally Posted by rogerg
That's an excellent photo Stuart! It looks like you have a very good pixel size there for the ST7 - must be about 1.5 arc sec/pixel? Much better than my barely 1 arc sec/pixel, resulting in a much sharper image than I can achieve.

Roger.
According to the Wodaski CCD calculator it's 1.85" per pixel, close to optimum. It's a nice FOV for the larger galaxies as well.

Cheers
Stuart
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  #20  
Old 19-11-2006, 10:07 AM
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Hi Stuart, Thats a great image, the arms of the spiral are well resolved and detailed.
Is that a smaller galaxy off to the left as well?

cheers
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