NGC2403

NGC2403 is a relative close galaxy, just outside our local group of galaxies toward the Constellation Camelopardalis, somewhere between 8-10 Million Light-Years distant. It has a similar morphology to M33. It is rich in bright new blue star forming regions and many massive pink HII regions. One of the brightest supernovas of modern times was noted in 2004. The HII regions are numerous and massive, the largest being over 2000 Light-Years in diameter. It is associated with the M81 group of galaxies. It is the first galaxy beyond the local group in which Cepheid variables (standard candles) were found.

Object: NGC2403
Distance: 8-10 Million Light-Years
Magnitude:
Date: January 2010
Place: Fort Davis, Texas
Exposure Details: LRGB:600:180:210:270 unbinned

Processing: MaxIm DL, CCDInspector, CCDStack, Photoshop CS3

Optics: 12.5" RCOS Truss
Focal Length: 2808mm @ f9
Mount: Paramount ME Robotic
Camera: SBIG STL6303E
Focuser: RCOS
Guiding: Off-Axis with SBIG Guide Camera
Filters: Tru-Balance LRGB Gen II 2"