Description:

The Medusa Nebula is a very old and large planetary nebula in the constellation of Gemini on the Canis Minor border. As it is so big, its surface brightness is very low, with surface magnitudes of between +15.99 and +25 reported. Because of this most websites recommend at least an 8-inch telescope with an [O III] filter to find this object although probably possible to image with smaller apertures.[citation needed] The Medusa was discovered in 1955, and until the early 1980s it was thought to be a supernova remnant.

Instrument:	Vixen Visac VC200l at f6.3
Mount:	Losmandy G11 with MTS3SDI
Camera:	SBIG ST10XME NABG
Filters:	SBIG CS LRGB filters, Astronomik 13nm Ha Filter

Circumstances:	Clear sky, very good seeing
Comments:	Exposure of 200:50:50:50. Ha:1x1bin; RGB: 2x2bin. I had some tracking errors and a planetoide crossing the view.