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Contains:  Horsehead nebula, IC 431, IC 432, IC 434, IC 435, NGC 2023, NGC 2024, The star Alnitak (ζOri), The star σOri
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Horsehead and flame nebula region (HaRGB w/DSLR), 


Horsehead and flame nebula region (HaRGB w/DSLR)
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Horsehead and flame nebula region (HaRGB w/DSLR)

Technical card

Dates:Jan. 4, 2018Jan. 6, 2018

Baader Ha 2" 7nm: 402x60" ISO1600
Hutech IDAS 2" LPS-D1: 325x60" ISO1600

Integration: 12.1 hours

Darks: ~32

Flats: ~32

Bias: ~32

Avg. Moon age: 18.61 days

Avg. Moon phase: 83.29%

Bortle Dark-Sky Scale: 6.00

Temperature: -4.00

Basic astrometry details job: 1881110

RA center: 5h 39' 39"

DEC center: -2° 26' 45"

Pixel scale: 1.638 arcsec/pixel

Orientation: 85.692 degrees

Field radius: 1.540 degrees

Resolution: 5589x3816

Locations: Backyard, Dacula, GA, United States


Here's the final image. 2 nights of Ha. 2 nights of RGB. I think some of shapes of the stars got messed up when trying to combine Ha with RGB using Star Alignment. Not sure how to fix that, but oh well, I'm pretty happy with the rest. An improvement from last year!

Ha only version:



License: None (All rights reserved)

Sky plot

Sky plot


Horsehead and flame nebula region (HaRGB w/DSLR),