Dolphin Nebula HOO (James R Potts)

Dolphin Nebula HOO

Revision title: Added more images

I am not totally satisficed with this image as I have seen a lot better ones on this site. I want to get more data, but I have a small window in the early morning to capture this target. I got about 3.5 hours last night, I tried to get some images 2 nights ago, but clouds moved in right when I started imaging. The current forecast looks a little bleak, but it I get some clear skies, I think I will just go for OIII.

Excerpt from the NASA website:Blown by fast winds from a hot, massive star, this cosmic bubble is much larger than the dolphin it appears to be. Cataloged as Sharpless 2-308 it lies some 5,200 light-years away toward the constellation of the Big Dog (Canis Major) and covers slightly more of the sky than a Full Moon. That corresponds to a diameter of 60 light-years at its estimated distance. The massive star that created the bubble, a Wolf-Rayet star, is the bright one near the center of the nebula. Wolf-Rayet stars have over 20 times the mass of the Sun and are thought to be in a brief, pre-supernova phase of massive star evolution. Fast winds from this Wolf-Rayet star create the bubble-shaped nebula as they sweep up slower moving material from an earlier phase of evolution. The windblown nebula has an age of about 70,000 years. Relatively faint emission captured in the featured expansive image is dominated by the glow of ionized oxygen atoms mapped to a blue hue.

Original
Final
B

B

Title: Added more images

Description: Added 3 hours of OIII, 18 10 minute subs. Lost some of the red (Ha), but the detail look a little better and the noise is much improved and I think the color looks more natural, I think I over saturated the first image, so easy to do!!!!

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	5374439
PixInsight job	28KCZX778QI9DYP54EAY59S5XQSK583Y
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m16s.350
RA (top/left)	06h52m36s.702
RA (top/right)	06h52m01s.322
RA (bottom/right)	06h55m56s.316
RA (bottom/left)	06h56m29s.458

Dec (center)	-23°54′56″.41
Dec (top/left)	-23°13′36″.18
Dec (top/right)	-24°30′48″.26
Dec (bottom/right)	-24°36′12″.70
Dec (bottom/left)	-23°18′57″.43

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