NGC 7789, Caroline's Rose
A lovely open cluster in Cassiopeia.
Read more.
NGC 7789
Telescope
Esprit 120ED APO Triplet
Camera
Atik one 6.0
Mount
Skywatcher Eq6-R
Flattener
TSFlat2,5
Guiding camera
Starlight Xpress Lodestar
OAG
TS 2" Off Axis Guider
Exposure
12 * 120sec RGB, 31 * 180sec L