Exposure data
Telescope: 4.5″ Newton f=440mm
Camera: SBIG ST8300M
Filters: Baader LRGB
Exposure time: L: 56x10min R: 10x10min G: 10x10min B: 10x10min
Exposure time total: 14h 20min
Mount: 10 Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Datum: 2015-04-21+22+23
Object data of Abell 1656
Object type: Galaxy cluster
Size: 180′
Magnitude: –
Constellation: Coma Berenices
Distance: 300 Mio Ly