Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2246  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  The star 12Mon
NGC 2237, The Rosette in Ha(HHO), 


NGC 2237, The Rosette in Ha(HHO)
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NGC 2237, The Rosette in Ha(HHO)

Technical card

Imaging telescopes or lenses: Astro-Tech AT8RC

Imaging cameras: SBIG STF-8300M

Mounts: Paramount MyT

Guiding cameras: QHY5L-II Mono

Focal reducers: CCDT67

Software: PixInsight  ·  Voyager

Filters: Baader Ha 36mm 7nm  ·  Astrodon OIII 3nm Tru-Balance

Accessory: Dew-Not DN09 Dew Heater  ·  SBIG OAG-8300  ·  Moonlite CSL 2.5" Threaded Focuser  ·  Kendrick Standard Dual Channel Dew Controller

Dates:Nov. 16, 2020Nov. 18, 2020Nov. 20, 2020

Baader Ha 36mm 7nm: 22x600" -20C bin 1x1
Astrodon OIII 3nm Tru-Balance: 35x600" -20C bin 2x2

Integration: 9.5 hours

Avg. Moon age: 3.63 days

Avg. Moon phase: 16.64%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details

Astrometry.net job: 4030768

RA center: 6h 31' 55"

DEC center: +4° 58' 33"

Pixel scale: 0.931 arcsec/pixel

Orientation: 0.065 degrees

Field radius: 0.543 degrees

Resolution: 3352x2532

Data source: Backyard


I don't normally go for the kind of super saturated look this represents, but I wanted to bring out as much structure as I could and this was the result.


Sky plot

Sky plot


NGC 2237, The Rosette in Ha(HHO),