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jgraham
Postmaster
Reged: 12/02/04
Loc: Dayton, Ohio
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IC2149 – Planetary Nebula in Auriga
#5521718 - 11/15/12 06:48 PM Attachment (71 downloads)
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This is another target that I first located with my LightBridge 16. IC2149 lies about ½ degree northwest of Pi Auriga (Menkalinan). It is fairly bright (Mv 10.6) and easy to find but it’s really small and at first it just looks like a star. In fact, it was cataloged as a star until 1906 when its spectrum was found to show the bright emission lines of H-alpha and O-III associated with a planetary nebula. High magnification shows a bright little peanut shaped nebula with a stellar core. Photographically it looks like a tiny version of the Saturn Nebula.
IC2149 – Planetary Nebula in Auriga
Telescope: Meade SC8 @ f/10, Orion Atlas EQ-G
Camera: Canon Rebel T2i, Orion Imaging Sky Glow Filter
Exposure: 64x30sec, ISO 3200 saved as RAW
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jgraham
Postmaster
Reged: 12/02/04
Loc: Dayton, Ohio
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Finder image for IC2149
[Re: jgraham]
#5521957 - 11/15/12 09:27 PM Attachment (49 downloads)
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This is the original full frame showing the location of IC2149 and selected stars labeled.
Edited by jgraham (11/15/12 09:50 PM)
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Ptarmigan
Lagopus lagopus
Reged: 09/23/04
Loc: Arctic
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Re: IC2149 – Planetary Nebula in Auriga
[Re: jgraham]
#5525253 - 11/17/12 10:56 PM
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I have tried to see that object. It is rather easy to find in Auriga, but I have never seen it. I tried to see it in white zone sky.
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Astrojensen
Post Laureate
Reged: 10/05/08
Loc: Bornholm, Denmark
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Re: IC2149 – Planetary Nebula in Auriga
[Re: Ptarmigan]
#5525516 - 11/18/12 04:36 AM
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This interesting planetary has very high surface brightness and will be visible in a white zone, by cranking up the magnification on your scope to the max - and then some. And it will need ultra-über-high magnification to tease out the details, but then they can be seen in a surprisingly small telescope. Here's a drawing of it I made with a 94/1300mm refractor at 742x:
Clear skies!
Thomas, Denmark
Edited by Astrojensen (11/19/12 02:21 PM)
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Scanning4Comets
Markus
Reged: 12/26/04
Loc: Deep Space!
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Re: IC2149 – Planetary Nebula in Auriga
[Re: Astrojensen]
#5526595 - 11/18/12 06:37 PM
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I've never seen this object. You've inspired me to look at it! I'll report back here with a drawing!
Thanks for the inspiration!
Cheers,
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Ptarmigan
Lagopus lagopus
Reged: 09/23/04
Loc: Arctic
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Re: IC2149 – Planetary Nebula in Auriga
[Re: Astrojensen]
#5526609 - 11/18/12 06:45 PM
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Quote:
This interesting planetary has very high surface brightness and will be visible in a white zone, by cranking up the magnification on your scope to the max - and then some. And it will need ultra-über-high magnification to tease out the details, but then they can be seen in a surprisingly small telescope. Here's a drawing of it I made with a 94/1300mm refractor at 742x:
Sorry - cannot access my gallery at the moment. Will update shortly.
Clear skies!
Thomas, Denmark
I will try again. I usually do not use the highest power I have of 406x as the seeing has to be good.
Edited by Ptarmigan (11/18/12 06:48 PM)
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tcmzodiac
professor emeritus
Reged: 11/11/11
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Re: IC2149 – Planetary Nebula in Auriga
[Re: Astrojensen]
#5532355 - 11/21/12 02:13 PM
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Quote:
This interesting planetary has very high surface brightness and will be visible in a white zone, by cranking up the magnification on your scope to the max - and then some. And it will need ultra-über-high magnification to tease out the details, but then they can be seen in a surprisingly small telescope. Here's a drawing of it I made with a 94/1300mm refractor at 742x:
Clear skies!
Thomas, Denmark
WOW! Using over 700x on a 90mm scope...your skies must be incredible at times!
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Astrojensen
Post Laureate
Reged: 10/05/08
Loc: Bornholm, Denmark
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Re: IC2149 – Planetary Nebula in Auriga
[Re: tcmzodiac]
#5532375 - 11/21/12 02:25 PM
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Quote:
WOW! Using over 700x on a 90mm scope...your skies must be incredible at times!
They are. Sometimes they are just super incredible SQM 21.8 with 0.5" seeing and I think "why do I ever think of moving away?", but then follow three weeks with 100% cloud cover, followed by half an hour of incredible skies, but miserable seeing, then another two weeks of near 100% clouds, then two nights of hazy skies, then clouds again...
But when my skies rock, they *really* rock. I just wish they would come on stage a bit more often...
Clear skies!
Thomas, Denmark
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Sarkikos
Postmaster
Reged: 12/18/07
Loc: Suburban Maryland, USA
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Re: IC2149 – Planetary Nebula in Auriga
[Re: Astrojensen]
#5535454 - 11/23/12 12:58 PM
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I've seen IC 2149 through a 10" Dob at my yellow zone site.
Mike
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