Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2236  ·  NGC 2239  ·  NGC 2244  ·  NGC 2252  ·  Rosette nebula  ·  The star 12Mon
NGC 2244 (Ha+RGB), 


            Scott Davis
NGC 2244 (Ha+RGB)
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NGC 2244 (Ha+RGB)

Technical card

Imaging telescopes or lenses: Canon EF 300mm f/4 L IS USM

Imaging cameras: Canon EOS Rebel T3i

Mounts: Celestron CGEM Hypertuned

Guiding telescopes or lenses: Orion ShortTube 80

Guiding cameras: Orion StarShoot Autoguider

Focal reducers: Astro-Tech AT2FF

Software: Sequence Generator Pro  ·  BinaryRivers BackyardEOS  ·  Photoshop CS6  ·  Scott Davis AAPPS

Filters: Astronomik 6nm Ha Clip-In Filter  ·  One-Shot Color

Dates:Dec. 31, 2013Jan. 2, 2014Jan. 4, 2014Jan. 5, 2014

Astronomik 6nm Ha Clip-In Filter: 113x300" (9h 25') ISO1600
One-Shot Color: 59x180" (2h 57') ISO1600

Integration: 12h 22'

Darks: ~27

Flats: ~47

Flat darks: ~47

Bias: ~47

Avg. Moon age: 9.43 days

Avg. Moon phase: 9.63%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details

Astrometry.net job: 298319

RA center: 6h 31' 44"

DEC center: +4° 56' 20"

Pixel scale: 5.216 arcsec/pixel

Orientation: -90.483 degrees

Field radius: 2.612 degrees

Resolution: 620x413

Locations: My Backyard, Clovis, California, United States; Ahwahnee Hills Observatory, Ahwahnee, California, United States


The Rosette Nebula, normally known as NGC 2244 which refers to the open cluster within the nebula, is a beautiful winter object in the constellation Monoceros.


Sky plot

Sky plot


NGC 2244 (Ha+RGB), 


            Scott Davis