Galaxy

M101 ( Pinwheel galaxy,   소용돌이은하 )

[2012. 4. 16, 양평 설매재 휴양림]
Optics : Megraz 72 (0.8 reducer/flattner)
Mount : EM200 temma2,   QHY5 guided
Camera : QSI 583WSG
Exposure :L 500sec x 5,   R,G,B 200sec x 2 
Image processed by Maxim DL & Photoshop CS3