Star Cluster
NGC 884, 869( Double cluster , 이중성단)
[2012.10.12.02:00 ~, 양평국제천문대]
Telescope : 6inch newtonian(f/5.0), SW comma correctorCamera : QSI 8300wsgMount : Takahashi EM200 T2Exposure time : L_500sec x 5(binning1), R,G,B_ 200sec x 5(binning 2) Image processed by Maxim DL & Photoshop CS3