Exposure data
Telescope: 10″ Lacerta Newton f=1000mm
Camera: SBIG ST8300M
Filters: Baader HαOIIILRGB
Exposure times: Hα: 26x8min OIII: 29x8min L: 8x5min R: 8x5min G: 8x5min B: 8x5min
Exposure time total: 10h
Mount: 10 Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Date: 2019-04-17+18+19
Object data of M 97
Object type: Planetary nebula
Size: 3.3′
Magnitude: 12.0 mag
Constellation: Ursa Major
Distance: 2000 Ly