NGC 654 + NGC 659 + NGC 663

MouseOver for object identification
100% resolution (1561 x 1173px)

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