Thursday, February 23, 2017

NGC 2359 - Thor's Helmet

Thor’s Helmet or NGC 2359 is an emission nebula located in the constellation Canis Major.
It is 30 light years across and lies at a distance of 11,960 light years from Earth.  It has some resemblance to the Norse god's helmet and so it is named.  (source: constellation guide).

I was able to shot this over four nights beginning last Thursday when we finally had some clear nights.  Some of which were above freezing.  I had some guiding issues after the mount did the meridian shift on the first two nights for some reason but I was able to get four hours decent exposures.  

Wide Field
darkened for low resolution monitor

Rotate and Crop

Close Up

NGC 2359 - Thor's Helmet
Location: Happy Frog Observatory, Monroe, CT
Date: 2-16-17, 2-18-17, 2-19-17, 2-20-17
Camera: Canon EOS Rebel T3i(a), Backyard EOS
Telescope: Orion ED80 80mm
f/7.5 Apochromatic Refractor Telescope
Barlow: None
Focal Reducer: Orion 0.8x Focal Reducer for Refractor Telescopes
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: 80 -180s (240 min)
ISO: 1600
Temp: 3 C
Post Processing: Deep Sky Stacker, Photoshop, Lightroom, Gradient Exterminator, Astronomy Tools, StarTools

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