Exposure data
Telescope: 4.5" Newton f=440mm
Camera: SBIG ST2000XM
Filters: SBIG LRGB
Exposure times: L:40x2min R:6x2min G:6x2min B:6x2min
Exposure time total: 1h 56min
Mount: Vixen New Atlux
Location: Erdweg/Germany (500m)
Date: 2010-10-09
Object data of NGC 654
Object type: Open cluster (ll 2 r)
Size: 6'
Magnitude: 6.5 mag
Constellation: Cassiopeia
Distance: 6000 Ly
Object data of NGC 663
Object type: Open cluster (ll 3 r)
Size: 16'
Magnitude: 7.1 mag
Constellation: Cassiopeia
Distance: 6000 Ly
