M101
Distance from Earth: about 27 million light years away.
Located in Ursa Major
Telescope: 12.5" RCOS
Camera : ST-10XME, AO guided
Mount : AP1200
Image date: Mar 2004
-- Filters used and total time--
Luminous 45 minutes (2x2 binning)
Red 30 minutes (2x2 binning)
Green 30 minutes (2x2 binning)
Blue 15 minutes (2x2 binning)
Ha
OIII
SII