Contains: NGC 6995, Veil nebula, Network nebula, NGC 6992, IC 1340
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Eastern Veil Nebula

Technical card

Resolution: 5486x3574

Dates: July 31, 2017Aug. 3, 2017Aug. 6, 2017Aug. 9, 2017Sept. 4, 2017

Frames:
ZWO H-alpha 7nm: 43x300" (gain: 139.00)
ZWO H-alpha 7nm: 10x300" (gain: 150.00)
ZWO OIII: 54x300" (gain: 150.00)
Orion SkyGlow 2" Astrophotography Filter: 180x60" (gain: 10.00)

Integration: 11.9 hours

Avg. Moon age: 12.41 days

Avg. Moon phase: 86.73%

Astrometry.net job: 1730774

RA center: 314.002 degrees

DEC center: 31.370 degrees

Pixel scale: 1.302 arcsec/pixel

Orientation: 270.757 degrees

Field radius: 1.184 degrees

Description

I added RGB stars using my one-shot color, but couldn't get this to align using the software I was hoping to use, so I did it manually. You can find an error if you look close. I also didn't get my reducer in 100% straight, so stars are skewed to the one side. It's also a tad noisy and just not that sharp overall. Maybe next year?

Comments

Author

Chris Sullivan
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Revisions

C

Added 44 OIII subs (and subtracted seven ones from the previous session).

D

Combined with 3 hours of data from the one-shot color camera under a full moon. It didn't work as well as I was hoping, so I probably won't try to do this again.

E

I think I was able to align it slightly better.

F

Final tweaks to tone down yellow/reddish background.

G

Fixed the last few skewed stars to the best of my ability, minor adjustments to selective color and levels.

H

Pulled back some of the saturation and increased contrast.

Sky plot

Sky plot

Histogram

Eastern Veil Nebula, Chris Sullivan