Exposure data
Telescope: 4.5″ Newton f=440mm
Camera: SBIG ST8300M
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 star cluster (II 2 r)
Size: 6.0′
Magnitude: 6.5 mag
Constellation: Cassiopeia
Distance: 6000 Ly
Object data of NGC 663
Object type: Open star cluster (II 3 r)
Size: 16.0′
Magnitude: 7.1 mag
Constellation: Cassiopeia
Distance: 6000 Ly
