Twin City Amateur Astronomers
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Thor's Helmet

Taken by: Tony Cellini, Bob Finnigan and Lee Green
Date: 3/8/2012
Exposure: 4 hours through Ha, OIII and LRGB filters

Located near the bright star Sirius in the constellation Canis Major, NGC-2359 (Thor's Helmet) is an emission nebula formed by gas excited by an energetic Wolf-Rayet star.
Celestron HD1100, Apogee U16M, Paramount ME
Ha: 6x900s, OIII: 6x900s
Luminance: 2x900s, RGB: 1x900s each channel