Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  B33  ·  Flame Nebula  ·  Horsehead nebula  ·  IC 434  ·  IC434  ·  NGC 2023  ·  NGC2023  ·  Orion B  ·  Sh2-277
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Horsehead Nebula cropped and refined, 


            Anthony Quintile
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Horsehead Nebula cropped and refined

Imaging telescopes or lenses: Sky-Watcher Quattro 10 f/4

Imaging cameras: ZWO ASI2600MC Pro

Guiding telescopes or lenses: ZWO 60280 Guide Scope

Guiding cameras: ZWO ASI120MM Mini

Focal reducers: Sky-Watcher Coma corrector f/4

Software: Phd2  ·  Pleaides Astrophoto PixInsight 1.8.8-6  ·  SharpCap 2.9  ·  Photoshop CC 2019  ·  DeepSkyStacker (DSS) deepskystacker

Accessory: zwo EAF  ·  Catseye Collimation System

Dates:Dec. 18, 2020

Frames: 224x120" (gain: 100.00) -10C

Integration: 7.5 hours

Darks: ~50

Flats: ~55

Flat darks: ~55

Avg. Moon age: 4.08 days

Avg. Moon phase: 17.66%

Bortle Dark-Sky Scale: 3.00

Astrometry.net job: 4192795

RA center: 5h 41' 21"

DEC center: -2° 21' 31"

Pixel scale: 0.387 arcsec/pixel

Orientation: -124.021 degrees

Field radius: 0.405 degrees

Resolution: 3923x6435

Locations: Home, Flagstaff, AZ, United States

Data source: Backyard


I cropped and further processed this from an image I took a month or so ago.

Original image here:


This image is not reduced from its 2x drizzled resolution, hence the high resolution listed in the details here. I don't know that I could guide my set up to truly resolve sub .40"/px.


Sky plot

Sky plot


Horsehead Nebula cropped and refined, 


            Anthony Quintile