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Old 01-09-2017, 05:09 PM
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strongmanmike (Michael)
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The Saturn Nebula

I wanted to shoot something while the almost 3/4 Moon was up and that wouldn't be affected too much by it or suffer from gradients etc....the seeing was ok, so something smaaaall....

Well, at the other end of the planetary nebula spectrum from The Mighty Helix Nebula....is the tiny Saturn Nebula . A favourite visual target of mine through a scope on a steady night

The inner ring of NGC 7009 spans just 25 arc sec of sky and the overall dimensions out to the ends of those bright Ansae are about 45" X 35" making it a challenging object to image, especialy at 1120mm FL . About a third of a light year across and some 3000 light years away, NGC 7009 is a tiny planetary nebula in Aquarius.

You can read more about NGC 7009 HERE

The Saturn Nebula

I'm thunking... this might be similar to an eyepiece view through a very large visual scope, if our eyes were much more sensitive to colour at low light levels...

There is actually an extremely faint diffuse mottled OIII outer halo, many times the size of the main nebula but this would have required a fair bit more exposure and under no moon, you can see it in this awesome CHART32 shot
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  #2  
Old 01-09-2017, 05:25 PM
markas (Mark)
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At f.l. of 1120mm - heroic! An amazing result.
Mark

PS: what is the pixel size of the camera?
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  #3  
Old 01-09-2017, 05:40 PM
Stevec35 (Steve)
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That's a very nice Saturn nebula Mike with good detail given that you don't have much focal length to play with.

Cheers

Steve
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  #4  
Old 01-09-2017, 06:02 PM
Placidus (Mike and Trish)
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That must be Titan down the bottom.
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Old 01-09-2017, 06:31 PM
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vlazg (George)
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Wow mike , that is fantastic, not much different from Chart 32, beer must help
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Old 01-09-2017, 06:45 PM
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SimmoW (SIMON)
Farting Nebulae

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More like the 'Alien Brain' neb Mike, wow an exotic one here!
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Old 01-09-2017, 06:45 PM
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RickS (Rick)
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Nice one, Mikey! I love its little pink cheeks Some great detail for your image scale and such a teeny weeny object.
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Old 01-09-2017, 09:21 PM
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Ryderscope (Rodney)
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Great work with your rig Mike.
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Old 01-09-2017, 09:42 PM
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You're really becoming the master of the planetary. A fabulous image. You get such detail from these.

Greg.
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Old 01-09-2017, 09:44 PM
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Very cool Mike
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  #11  
Old 02-09-2017, 09:44 AM
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Atmos (Colin)
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Really nice smile!
How much exposure time when in this? It is small but relatively bright.
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  #12  
Old 02-09-2017, 11:04 AM
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alocky (Andrew lockwood)
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Hi Mike - ever since Kent Wallace inspired me to take planetary nebula observations seriously with a big dob, it really highlighted the gap between the eyepiece view at high power and the best amateur images of which this is definitely one. It's interesting to compare your image - there is a wealth of detail in there that's too faint to see in the 25", but because of the long exposure a lot of the subtle fine structure is lost. Still - a wonderful effort!
I guess we're going to need planetary style video imaging to show these objects off. Next generation of cameras maybe?
Cheers
Andrew.
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Old 02-09-2017, 01:35 PM
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multiweb (Marc)
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+1 Fantastic details given your FL.
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  #14  
Old 02-09-2017, 01:46 PM
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peter_4059 (Peter)
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Beaut image Mike. Amazing details for such a small target.
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  #15  
Old 02-09-2017, 02:27 PM
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strongmanmike (Michael)
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Wow, thanks so much everyone, glad you all enjoyed this one Was a bit of a "Hmmm?..what can I image while waiting for my main target to rise..?" sort of target

Overall I was pretty happy with how the final image came together, it wasn't the best seeing I get here but was still good enough to bother tackling such a target

As far as focal length goes, a search of other images of this object out there, makes it very clear that apart from a small handful of shots taken from excellent sites with sub arc sec seeing and big RC's, my result stacks up to, or exceeds, most versions taken with much longer focal length scopes . As I have said before, in the end it is "image scale" that counts and not focal length as such, of course the seeing quality is No. 1 and finally your optical quality (plus AO if you have it), that produce the resolution

Colin, hmmm?..do you not read the image credits under images mate ....been putting all that info under every image at my website for ooooh?..over 10 years now dude

Mark my image scale is 0.84"/pix (also in my image credits )

Andrew, thanks mate and yes through a big scope under good seeing at high power I would imagine it would be a bit like the Homunculus around Eta Carina, hard to replicate the moments of good seeing when the fine stuff shows up in a big dob...of course you see no colour though ..maybe a touch of orange in the Homunculus.

Mike and Trish, thanks for the subservient M&M's

Thanks again all who commented

Mike
did I use enough emoticons...? ...

...sorry

Last edited by strongmanmike; 02-09-2017 at 02:42 PM.
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  #16  
Old 03-09-2017, 01:06 PM
topheart
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Top shelf Mike!
Outstanding!!
Cheers,
Tim
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  #17  
Old 03-09-2017, 04:36 PM
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strongmanmike (Michael)
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Quote:
Originally Posted by topheart View Post
Top shelf Mike!
Outstanding!!
Cheers,
Tim
Thanks so much Tim ...not bad for a quicky I guess, I just did this while I was waiting for NGC 1398 to get into position

Mike

Last edited by strongmanmike; 03-09-2017 at 05:12 PM.
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  #18  
Old 03-09-2017, 06:13 PM
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Marke (Mark)
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wow so much info in such a little object and what an amazing looking object it is
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  #19  
Old 03-09-2017, 08:29 PM
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cometcatcher (Kevin)
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That's nice.
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  #20  
Old 03-09-2017, 10:59 PM
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strongmanmike (Michael)
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Quote:
Originally Posted by Marke View Post
wow so much info in such a little object and what an amazing looking object it is
Cheers Mark, agreed

Quote:
Originally Posted by cometcatcher View Post
That's nice.
Bit small for my finder so...sorry
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