Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2244  ·  Rosette nebula  ·  The star 12Mon
Rosette Nebula , 


Rosette Nebula
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Rosette Nebula

Technical card

Imaging telescopes or lenses: ORION 120mm f/8.3 Achromatic Refractor

Imaging cameras: Canon EOS 600D / Rebel T3i

Mounts: ORION Skyview Pro

Software: Fits Liberator  ·  Backyard EOS  ·  Photoshop CS6  ·  Stark Labs Nebulosity 3

Dates:Feb. 21, 2014

Frames: 75x60" (1h 15')

Integration: 1h 15'

Avg. Moon age: 20.92 days

Avg. Moon phase: 62.96%

Basic astrometry details

Astrometry.net job: 189822

RA center: 6h 32' 11"

DEC center: +4° 53' 6"

Orientation: -154.337 degrees

Field radius: 0.724 degrees

Resolution: 620x385

Locations: Random Field, Bardstown, KY, United States


REVISION - I cut back on the subs I used and limited it to only the best ones possible. This brought it down to just 35 frames, but cutting out the blurry ones really sharpened up the stars over all.

75x 60 second frames - Completely unguided, just a polar aligned mount. No Darks or Bias frames applied (yet).

The weather here in KY finally settled down for a decent night. This is the first time in almost three months since I've been out at my observing location. It's painfully obvious that my un-modded Canon 600D can't pick up Ha very well and that my refractor is achromatic. This I just a first run through with the current data I have - I think I'll end up going through each frame and keep only nearly perfect ones, as some coma and imperfect stars can be seen (Though I'm not sure if that is due to bad frames or the alignment process of Nebulosity 3).



  • Rosette Nebula , 


  • Final
    Rosette Nebula , 



Sky plot

Sky plot


Rosette Nebula ,