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Contains:  12 Mon, NGC 2237, NGC 2238, NGC 2239, NGC 2246, NGC2237, NGC2238, NGC2239, NGC2244, NGC2246, Rosette A, Rosette B, Rosette Nebula, Rosette nebula, Sh2-275, The star 12Mon
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NGC 2237 - Rosette Core in SHO revisited

Technical card

Dates:Dec. 15, 2019Dec. 16, 2019Dec. 17, 2019

Optolong H-alpha 7nm 2": 70x180" (gain: 139.00) -20C bin 1x1
Optolong Oiii-CCD 6.5 nm 2": 60x180" (gain: 139.00) -15C bin 1x1
Optolong SII-CCD 6.5nm 2": 50x180" (gain: 139.00) -20C bin 1x1

Integration: 9.0 hours

Darks: ~100

Flats: ~100

Avg. Moon age: 19.24 days

Avg. Moon phase: 78.51%

Bortle Dark-Sky Scale: 9.00 job: 3443645

RA center: 6h 31' 51"

DEC center: +4° 57' 42"

Pixel scale: 0.864 arcsec/pixel

Orientation: 169.488 degrees

Field radius: 0.677 degrees

Resolution: 4524x3366

Locations: Casa, Córdoba Capital, Córdoba, Argentina

Data source: Backyard


A new Rendition of Rosette's core, applying all I've learned in this time.

Hope you like it!

Clear Skies



Ariel Cappelletti
License: None (All rights reserved)

Sky plot

Sky plot


NGC 2237 - Rosette Core in SHO revisited, 


            Ariel Cappelletti