Exposure data
Telescope: Vixen VC200L (8" Cassegrain f=1260mm)
Camera: SBIG ST8300M
Filters: Baader LRGB
Exposure times: L:46x8min R:8x8min G:8x8min B:8x8min
Exposure time total: 9h 20min
Mount: 10 Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Date: 2014-03-11+12+13
Object data of M 101
Object type: Galaxy (SBc)
Size: 28'
Magnitude: 8.2 mag
Constellation: Ursa Major
Distance: 22 Mio Ly