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Contains:  NGC 2239, NGC 2244, NGC 2252, Rosette nebula, The star 12Mon
Rosette Narrowband, 


            Jirair Afarian
Rosette Narrowband
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Rosette Narrowband

Technical card

Dates:Feb. 23, 2020

Baader OIII 8.5nm 1,25": 16x600" (gain: 139.00) -10C bin 1x1
Baader SII 8nm 1.25": 15x600" (gain: 139.00) -10C bin 1x1

Integration: 5.2 hours

Darks: ~30

Flats: ~30

Avg. Moon age: 29.41 days

Avg. Moon phase: 0.02%

Bortle Dark-Sky Scale: 6.00

Mean FWHM: 4.88

Temperature: 3.00

Basic astrometry details job: 3295343

RA center: 6h 31' 54"

DEC center: +4° 56' 52"

Pixel scale: 1.393 arcsec/pixel

Orientation: 261.440 degrees

Field radius: 1.095 degrees

Resolution: 4503x3431

Locations: Home Observatory, Richmond Hill, Ontario, Canada

Data source: Backyard


Rosette in Narrowband, this image was taken over 3 nights. I've added SII and OIII data to the original Ha data that I acquired previously. Clearly there was so many ways of processing this and with so many color variations, I settled with this version for now. Might play around with the original to come out with more variations. Let me know what you guys think and as always any helpful suggestions and criticism is welcomed. Clear skies!



Jirair Afarian
License: None (All rights reserved)


  • Rosette Narrowband, 


            Jirair Afarian
  • Final
    Rosette Narrowband, 


            Jirair Afarian


Description: Played around with the color palette.

Sky plot

Sky plot


Rosette Narrowband, 


            Jirair Afarian