NGC5189 or nicknamed the Spiral Planetary Nebula is located in Musca. And; this name is no doubt brought on by the striated nature of the gas and dust seen in various wave lengths
It is a tiny planetary. It is 90 x 62 arc seconds in size and to put that into perspective it has the apparent size of double Jupiter's width and about 1.25 times the apparent height of Jupiter. Seeing was variable over the 4 nights I collected data and I did not collect data below 42 degrees. With only 8 hours of data there is still some noise present but not enough gains can be made by collecting further data at this stage.
Beautiful image Paul You evidently got a lot more detail here than I did when I imaged this one under poor seeing conditions. Really shows how important seeing is for these tiny objects
This object is a gem, and very colourful both in NB and RGB. Thanks for the view!
Thanks Russell, Rod, Mike and Marc for your comments. Much appreciated.
Quote:
Originally Posted by Bassnut
wow, thats different, excellent detail Paul.
Thanks Fred. I was surprised at the level of detail to be seen.
Quote:
Originally Posted by gregbradley
I don't think I've seen this object before. Great work.
Greg.
Thanks Greg. Actually, I think you might have seen this before. Mike Sidonio did this object as his first image from his current observatory. His detail level looks a bit different to mine, no doubt different application of the data influenced both images.
Quote:
Originally Posted by jase
Tough little target Paul. A great image. For only narrowband data, your star colours are near perfect. Nice!
Thanks Jase, I have been playing around with combinations in NB to produce RGB colour combinations. It usually takes several different combinations to work. Martin has a technique which works without going to this hassle. He mentioned it to me some time ago, but it largely went in one ear and out the other. I would prefer to use his technique as all his stars look near perfect.
Quote:
Originally Posted by gvanhau
Nice capture Paul
I did this object a couple of years ago...I prefer to look at it upside down, then it resembles a goldfish ...
Geert
Thanks Geert, there are several compositions which can look good, vertical looks pretty good generally, but I did not go looking. Thanks for the idea.
Quote:
Originally Posted by SkyViking
Beautiful image Paul You evidently got a lot more detail here than I did when I imaged this one under poor seeing conditions. Really shows how important seeing is for these tiny objects
This object is a gem, and very colourful both in NB and RGB. Thanks for the view!
Thanks Rolf. I might get some RGB data yet for a screen wash over the NB data. RGB images show some nice reds.
I had a couple of subs that were not that great seeing wise and that meant I had to work the data quite a bit to sharpen it without it looking too sharpened.
I reckon Mike's 20" CDK would give a better scale again on this object. 2.4 metres is just not quite enough.
That's the best amateur image of this object I've seen, Paul, apart from the Chart32 version (and you'd have to argue whether those guys are amateurs...)
That's the best amateur image of this object I've seen, Paul, apart from the Chart32 version (and you'd have to argue whether those guys are amateurs...)
Cheers,
Rick.
Thanks Rick and high praise.
I just took a look at the Chart32 version and that is an outstanding image. Imaging at altitude does have its advantages. Processing is superb. I can hear the AOX calling me again.
Paul that is a superb image, one of my favourite objects from my visual days and one of the best gems in the whole sky. Today even one of my quick n dirty 30 second supernova search monochrome jobs brings out sensational detail, but nothing like this!
It was discovered by James Dunlop from Parramatta in 1826, though Hartungs says J Herschel discovered it in 1835. Its about 3000 light years away. Love the wide field around it, you don't often see that.
Thanks Greg. Actually, I think you might have seen this before. Mike Sidonio did this object as his first image from his current observatory. His detail level looks a bit different to mine, no doubt different application of the data influenced both images.
The detail levelsare essentially the same (ie. not too bad), just a slightly different colour scheme and orientation, t'was from my previous observatory .
You evidently got a lot more detail here than I did when I imaged this one under poor seeing conditions. Really shows how important seeing is for these tiny objects 
That's very good indeed. Incredible details. 
