Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  12 Mon  ·  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2244  ·  NGC 2246  ·  NGC 2252  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  Sh2-275  ·  The star 12Mon
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NGC-2238 The Rosette Nebula, 



    
        

            Eric Kallgren
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NGC-2238 The Rosette Nebula

Getting plate-solving status, please wait...
NGC-2238 The Rosette Nebula, 



    
        

            Eric Kallgren
Powered byPixInsight

NGC-2238 The Rosette Nebula

Imaging telescopes or lenses: Astro-Tech AT65EDQ 65mm f/6.5 ED quadruplet

Imaging cameras: QHY9 mono

Mounts: Orion Atlas Pro AZ/EQ-G Atlas Pro AZ/EQ-G

Guiding telescopes or lenses: Astro-Tech AT60GS

Guiding cameras: Orion StarShoot AutoGuider SAGG

Filters: Baader H-Alpha 7nm  ·  Astrodon Green Tru-Balance E-Series Gen 2 36mm Green  ·  Astrodon Red Tru-Balance E-Series Gen 2 36mm Red  ·  Astrodon Blue Tru-Balance E-Series Gen 2 36mm Blue


Dates:Jan. 29, 2021Jan. 30, 2021

Frames:
Astrodon RBG True Balance Gen II 36mm: 150x180" (7h 30') -20C bin 1x1
Baader H-Alpha 7nm: 30x300" (2h 30') -25C bin 1x1

Integration: 10h

Darks: 25

Flats: 25

Bias: 200

Avg. Moon age: 16.00 days

Avg. Moon phase: 97.99%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.74

Temperature: -3.00


Astrometry.net job: 4198894

RA center: 6h 31' 48"

DEC center: +4° 53' 28"

Pixel scale: 2.636 arcsec/pixel

Orientation: -103.203 degrees

Field radius: 1.445 degrees


Resolution: 3196x2316

Locations: Home Site (Granite Ridge Observatory), Reno, Nevada, United States

Data source: Backyard

Description

RGB Channels 50 each @ 180

From Wikipedia:

The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter.

The cluster and nebula lie at a distance of 5,000 light-years from Earth[3]) and measure roughly 130 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.

Comments

Revisions

  • NGC-2238 The Rosette Nebula, 



    
        

            Eric Kallgren
    Original
  • Final
    NGC-2238 The Rosette Nebula, 



    
        

            Eric Kallgren
    B

Sky plot

Sky plot

Histogram

NGC-2238 The Rosette Nebula, 



    
        

            Eric Kallgren