Cigar Galaxy, M82
Copyright © 2011
M82, NGC 3034, the Cigar Galaxy in the constellation Ursa Major
A galaxy of peculiar type usually classified as irregular, though probably a distorted disk galaxy, and famous for its heavy star-forming activity. Its core seems to have suffered dramatically from a semi-recent close encounter with its neighbor, M81, being in a heavy starburst and displaying conspicuous dark lanes. This turbulent explosive gas flow is also a strong source of radio noise.
Distance: 12 million light years.
Camera: SBIG ST-10XME
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: HaRGB image with 46 Ha images at 10 minutes each, 64 red images at 5 minutes each, 8
1 green images at 5 minutes each, and 8 blue images at 5 minutes each for a total exposure
time of 24 hours and 35 minutes.
Date: March 2011
Software: Camera and guider control - CCDCommander, MaximDL, calibration and stacking - CCDStack2, further processing in Photoshop CS4.