Sunday, January 29, 2017

The Rosette Nebula (NGC 2239)

The Rosette Nebula or NGC 2237 is a brilliant  emission nebula in  the constellation of Monoceros.
It's named for its flowery appearance. The center of the nebula lies an open cluster  (NGC 2244) of bright young stars that formed about four million years ago from the nebular material and their stellar winds are clearing a hole in the nebula's center. The Nebula lies about 5000 light-years away and is about 100 light-years across.  (source: APOD)

I have been wanting to image this for a while and is a good target for a (Hap Griffin) modified camera with an Astronomik UHC Clip Filter.  Of course I had to wait for the right window as I do not have a full view of the night sky and the weather but a I did manage to get over a couple of hours on it.  Enjoy...

Rosette Nebula (NGC 2239 or Caldwell 49)
Location: Happy Frog Observatory, Monroe, CT
Date/Time: 1-26-17, 11:45 pm, 1-28-17, 11:45 pm
Camera: Canon EOS Rebel T3i(a), Backyard EOS
Telescope: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
Barlow: None
Focal Length: 600mm
Mount: Orion Sirius EQ-G GoTo Telescope Mount
Filter: Astrodon UV/IR, Astronomik UHC Clip
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: 31 x 180 sec, 28 x 180 sec (177 min)
ISO: 1600
Temp: 2.2 C (36 F)
Post Processing: Deep Sky Stacker, Photoshop, Gradient Exterminator, Astronomy Tools

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