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Contains:  NGC 2244, Rosette nebula, NGC 2239, The star 12Mon
Getting plate-solving status, please wait...

The Rosette Nebula in HOO

Technical card

Resolution: 4345x3256

Dates:Dec. 5, 2018

Baader H-Alpha 36mm 7nm: 12x600" (gain: 139.00) -20C bin 1x1
Baader O III 36mm 8nm: 12x600" (gain: 139.00) -20C

Integration: 4.0 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 27.78 days

Avg. Moon phase: 3.44%

Bortle Dark-Sky Scale: 4.00

Temperature: -3.00 job: 2400339

RA center: 97.980 degrees

DEC center: 4.994 degrees

Pixel scale: 1.169 arcsec/pixel

Orientation: 276.230 degrees

Field radius: 0.882 degrees

Locations: Dewey AZ Home, Dewey, Arizona, United States

Data source: Backyard


While I planned to capture about 7 hours of data last night, I only collected four hours of usable subs, due to guiding and autofocus problems. Evidently, I haven't quite got the hang of Sequence Generator Pro's autofocus settings. Better luck next time.

Oh, the joys of astrophotography! : )



Alex Roberts
License: None (All rights reserved)


Sky plot

Sky plot


The Rosette Nebula in HOO, 


            Alex Roberts