NGC7293 Helix Nebula SOH + RGB Stars (Gary Seven)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: HD213056 · HD213069 · Helix Nebula · NGC 7293

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NGC7293 Helix Nebula SOH + RGB Stars

Revision title: Helix Nebula - Color Improvement

Powered byPixInsight

NGC7293 Helix Nebula SOH + RGB Stars

Revision title: Helix Nebula - Color Improvement

After the Sculptor Galaxy last year I told myself I would not shoot that low to the south again. In addition to only having 3 hours per day above 30 degrees elevation, I was looking back towards the light pollution and heat turbulence of the city. But like a moth to the flame ...

R: 31 x 60s
G: 31 x 60s
B: 30 x 60s
S: 40 x 300s
O: 45 x 300s
H: 40 x 300s

Total integration 13h 29m

Original
B
Final
C

B

Title: Helix Nebula PixInsight reprocessed in H-O-O

Description: Going back through my previous images, I just could not get a good result on this one. Eventually I traced the problem back to my SII data which was both weak and noisy. So, this marks my foray into the world of HOO imaging.

And since this one looks so evil, I cropped and rotated just a bit differently ;-)

Uploaded: ...

C

Title: Helix Nebula - Color Improvement

Description: There are many images that call out for reprocessing as I learn more about PixInsight. But there was one that screamed out for it. This one! Every time I went to my Astrobin page those ugly colors just kept staring back at me like some type of ugly eye. So here it is.

In this revision, the S-II is added back in. I also experimented with stretching the narrowband channels individually vs. stretching after combining them. I preferred the result of the Before Combine option. Each channel had a rather large pedestal, so matching them up was very easy to do by adjusting the offending black point(s), and I could still make small "tuning" stretches (individual or RGB) in GHS.

Uploaded: ...

N.I.N.A. Users
Arizona Astrophotographers
Cloudy Nights

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	7765589
PixInsight job	ZQI9S5U5DEIFBP3N5GNYZAD0AV1FQ53F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h29m38s.490
RA (top/left)	22h31m57s.330
RA (top/right)	22h28m22s.337
RA (bottom/right)	22h27m18s.874
RA (bottom/left)	22h30m54s.459

Dec (center)	-20°49′19″.66
Dec (top/left)	-20°48′16″.24
Dec (top/right)	-20°22′02″.29
Dec (bottom/right)	-20°50′16″.32
Dec (bottom/left)	-21°16′29″.18

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NGC7293 Helix Nebula SOH + RGB Stars

Revision title: Helix Nebula - Color Improvement

NGC7293 Helix Nebula SOH + RGB Stars

Revision title: Helix Nebula - Color Improvement

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Image Index:

Contribution Index (beta):

NGC7293 Helix Nebula SOH + RGB Stars

Revision title: Helix Nebula - Color Improvement

NGC7293 Helix Nebula SOH + RGB Stars

Revision title: Helix Nebula - Color Improvement

Equipment

Acquisition details

Description

Comments

Revisions

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C

Sky plot

Histogram

In these public groups

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