Exposure data
Telescope: 4.5"-Newton f=440mm)
Camera: SBIG ST8300M
Filters: Baader LRGB
Exposure times: L:56x10min R:10x10min G:10x10min B:10x10min
Exposure time total: 14h 20min
Mount: 10 Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Date: 2015-04-21+22+23
Object data of Abell 1656
Object type: Galaxy cluster
Size: 180'
Magnitude: brightest member: 12.5 mag
Constellation: Coma Berenices
Distance: 300 Mio Ly
