Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Flame Nebula  ·  IC 434  ·  NGC 2023  ·  NGC 2024  ·  Orion B  ·  The star Alnitak (ζOri)
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Horsehead and Flame Nebulae in HaRGB, 


            Rex Robichaux
Horsehead and Flame Nebulae in HaRGB
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Horsehead and Flame Nebulae in HaRGB

Technical card

Imaging telescopes or lenses: TSOptics photoline apo 130/905 F/7

Imaging cameras: ZWO ASI1600mm Mono

Mounts: SkyWatcher EQ6-R Pro

Guiding telescopes or lenses: Primalucelab 60mm guidescope

Guiding cameras: Orion Starshoot Autoguider Starshoot autoguider

Focal reducers: TS-Optics 2-5" 0.8x Reducer and Flattener TS-Optics .80 Reducer / Flattener

Software: StarTools 1.7  ·  PHD2  ·  APT - Astro Photography Tool APT 2.43  ·  Adobe Light room CC

Filters: Astrodon B  ·  Astrodon G  ·  Astrodon R  ·  Astrodon Ha 3nm

Dates:Feb. 2, 2021March 4, 2021

Astrodon B: 40x60" (gain: 139.00) -20C bin 1x1
Astrodon G: 40x60" (gain: 139.00) -20C bin 1x1
Astrodon Ha 3nm: 40x300" (gain: 200.00) -20C bin 1x1
Astrodon R: 40x60" (gain: 139.00) -20C bin 1x1

Integration: 5.3 hours

Darks: ~40

Flats: ~40

Flat darks: ~40

Avg. Moon age: 20.09 days

Avg. Moon phase: 71.13%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details

Astrometry.net job: 4278403

RA center: 5h 40' 53"

DEC center: -2° 16' 40"

Pixel scale: 1.076 arcsec/pixel

Orientation: 88.815 degrees

Field radius: 0.826 degrees

Resolution: 4477x3242

Locations: Home, Glen Allen, Virginia, United States

Data source: Backyard


Here's the picturesque Horsehead and Flame Nebulae in HaRGB. This is my second shot at mono imaging with the 1600MM and I'm loving it. I hope you enjoy!