Contains: NGC 2023, Horsehead nebula, IC 434
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Horsehead Nebula in HOO

Technical card

Resolution: 2981x3251

Dates: Nov. 8, 2017Nov. 13, 2017

Frames:
Astronomik Ha: 50x180" (gain: 139.00) -20C bin 1x1
Astronomik OIII: 16x120" (gain: 139.00) -20C bin 1x1

Integration: 3.0 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 22.20 days

Avg. Moon phase: 49.50%

Astrometry.net job: 1815336

RA center: 85.212 degrees

DEC center: -2.450 degrees

Pixel scale: 0.833 arcsec/pixel

Orientation: 96.932 degrees

Field radius: 0.510 degrees

Description

I captured Ha data on the Horsehead nebula over a week ago. But I still wanted a color image of it with this telescope before I switch back to wide field imaging. I had a small window last night to capture OIII data and only managed 32 minutes, but adding it to Ha, it was enough to give me that color Horsehead. Now I'd like to capture it with my wide field scope and use my LRGB filters.

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Chuck's Astrophot...
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Horsehead Nebula in HOO, Chuck's Astrophotography