Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Horsehead nebula  ·  IC 434  ·  IC 435  ·  NGC 2023  ·  NGC 2024  ·  The star Alnitak (ζOri)
Alnitak region in Ha(R+Ha)GB, 



    
        

            Matt McBee
Alnitak region in Ha(R+Ha)GB
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Alnitak region in Ha(R+Ha)GB

Acquisition details

Dates:
Dec. 3, 2011
Frames:
Astrodon Tru-Balance Generation 2 E-Series - LRGB: 12×300(1h) bin 1×1
Baader Planetarium Ha 7nm: 11×900(2h 45′) bin 1×1
Integration:
3h 45′
Darks:
40
Flats:
20
Flat darks:
20
Avg. Moon age:
8.36 days
Avg. Moon phase:
60.36%

Basic astrometry details

Astrometry.net job: 89800

RA center: 05h41m24s.7

DEC center: -02°0831

Pixel scale: 1.212 arcsec/pixel

Orientation: 63.084 degrees

Field radius: 0.646 degrees

Resolution: 620x459

File size: 174.5 KB

Locations: Driveway, Kingsport, TN, United States

Description

This is a combination of Ha and RGB images. I used Ha as the luminance channel with resulted in the stars being very attenuated. I tried this composition because I was getting a very nasty halo around Alnitak in my luminance channel.

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Alnitak region in Ha(R+Ha)GB, 



    
        

            Matt McBee