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Paul Haese
28-07-2020, 10:19 PM
This is a somewhat intriguing planetary nebula. Some of the professional images of it are taken in OIII, Ha and Nitrogen. This gives an almost Hubble palette of the object. So I thought I would try doing likewise. Alas that was not capable out of my meager instrument. The SII in this object is very faint and took quite a few hours just to get a reasonably bright image. In then end it did not add anything to the image.

The object is found in Ophiuchus at around 2500 light years. It is reasonably faint at 12.9 magnitude and would most likely have only shown a ring when observed by William Herschel. The fainter halo would not have been visible at all; perhaps only a faint nodule or two seen. An interesting challenge for anyone to try.

The image contains Luminance, Ha, OIII, and RGB. Totally 22.6 hours of integration.

Click here (http://paulhaese.net/NGC6369.html) for the larger image.

Placidus
29-07-2020, 08:00 AM
The long exposure has pulled out some as-you-say intriguing outer arches and rings, different in H-alpha and OIII.

Very tiny details extracted and perfect star field.

The beastie itself looks like a cross between the City of Sydney anchor logo and Hercule Poirot's moustache.

Ryderscope
29-07-2020, 08:23 AM
A fascinating object and definitely worthy of exploration. Nicely rendered Paul.

Atmos
29-07-2020, 09:05 AM
Great little PN, with all of the exposure you’ve put into it it no longer looks like a faint little sucker :)
Very well done :thumbsup:

multiweb
29-07-2020, 09:21 AM
Nice pic. Any reason you didn't use the RC on this one?

Joshua Bunn
29-07-2020, 10:52 AM
Small PN, you've done well Paul. The colours look good. What's the lower right brightness?
Josh

Paul Haese
29-07-2020, 04:10 PM
Thanks guys for the comments, appreciated



Hi Marc, the RC is not currently in commission at the observatories. It is on the dining room floor in the house down there. It will go into commission once I find a decent flattener for it. I have two mounts at present and five telescopes. Both the AG12's are in commission on the mounts.

Josh, that I think is a rather bright O star just out of the field of view.

multiweb
29-07-2020, 05:26 PM
:eyepop: :lol: You need more mounts or side by side plates.

Paul Haese
29-07-2020, 07:15 PM
I am working on getting another Bisque mount, but won't go back to side by side again. :)

multiweb
29-07-2020, 08:32 PM
Would one PME take two AG12s piggy backed? One focuser down and the other top up.

Paul Haese
30-07-2020, 10:00 AM
Hmmm, probably not. The overall weight would be somewhere around 60kgs without including counter weights. It would be huge setup though.

topheart
30-07-2020, 10:01 AM
Well done Paul!
Cheers,
Tim

strongmanmike
30-07-2020, 01:12 PM
Yeah an intriguing little blighter and you've done a good job.

The HST image of it is very cool too.

Your result is quite interesting, I used SIIHaOIII too when I shot it three years ago and the structures in our respective images look quite different, I'm thinking your RGB might have been incorporated differently?

Either way a worthwhile, all be it very tiny, target :thumbsup:

Mike