M27 for heaven's sake (Ian Dixon)

M27 for heaven's sake

Revision title: version d

Hello all,

This is a Messier object that I have never imaged... so its time to get busy. I ventured out to Glenlea observatory which is very close to home. The observatory is part of our local RASC and this facility has a large concrete pad, electrical outlets, warm room, etc... plus I connected with a couple of a couple of astro friends to discuss our imaging projects.

M27 itself is the result of an old (relatively old) star shedding mass. Knots of gas and dust seem to radiate from the central star. This DSO is shaped like a spheroid and is viewed from our perspective along the plane of its equator. Its rate of expansion angularly is quite small, viewed from our distance...eg, ~ 2 arc seconds per century with an expansion velocity of 31 klicks per second. The age of the nebula is ~ 10,000 years or so.

Personal notes: I was surprised how bright this object is... my 300s subs were very bright... and after a couple of sessions wherein I have imaged some very faint galaxies, this was a bit of a shocker.

In the final process of this image, I attempted to maintain (or at minimum, approximate) the colour and "vibe" that I saw in the subs.

Thanks for looking!

Ian

Original
B
Final
C

B

Title: M27 - cropped planetary

Description: I found this DSO (never before imaged by myself) to be difficult to process, with the goal to try to bring out the details of the outer enveloping shock waves.

Uploaded: ...

C

Title: version d

Uploaded: ...

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Status	Advanced success
Started	...
PixInsight job	AO743LXWCKPSHIYMDZCVZHWHNLOYIZUG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m36s.291
RA (top/left)	19h58m20s.206
RA (top/right)	19h59m41s.210
RA (bottom/right)	20h00m52s.430
RA (bottom/left)	19h59m31s.452

Dec (center)	+22°43′19″.61
Dec (top/left)	+22°46′11″.40
Dec (top/right)	+22°25′34″.42
Dec (bottom/right)	+22°40′25″.82
Dec (bottom/left)	+23°01′04″.71

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