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Contains:  NGC 2252, NGC 2244, Rosette nebula, NGC 2239, The star 12Mon
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NGC2237 (Rosette Nebula), 


            Jeffrey Rossini
NGC2237 (Rosette Nebula)

NGC2237 (Rosette Nebula)

Technical card

Resolution: 4608x3472

Dates:March 1, 2017

Baader Planetarium H 1.25", Ha 7nm: 36x120" -20C bin 1x1
Baader Planetarium O3 1.25" 8.5nm: 36x120" -20C bin 1x1

Integration: 2.4 hours

Darks: ~9

Bias: ~100

Avg. Moon age: 3.06 days

Avg. Moon phase: 10.26% job: 1477934

RA center: 6h 32' 28"

DEC center: +4° 57' 39"

Pixel scale: 1.601 arcsec/pixel

Orientation: 120.638 degrees

Field radius: 1.283

Locations: Front Porch, Capitola, CA, United States

Data source: Backyard


Everything was working so well last night that it almost felt like cheating. I was able to grab 2.4hrs of exposures painlessly and before midnight, at which point the subject moved behind the neighbors roof.
I present to you NGC2237, otherwise known as the Rosette Nebula.
From Wiki:
The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 50 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.
Acquisition details:
Telescope: ES 80mm APO (My little refractor)
Tracking Mount: EQ6
Exposures: 120s x 36 w/ H-alpha filter 7nm
120s x 36 w/ Oiii filter 8.5nm.


Jeffrey Rossini
License: None (All rights reserved)

Sky plot

Sky plot


NGC2237 (Rosette Nebula), 


            Jeffrey Rossini

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