M27 Nebula;
Date; 24/April in 2017 At Araragi mount
Telescope; Celesctron EdgeHD800 (F=10,No-reducer)
Camera; SBIG; STL-11000M
Mount; Takahashi NJP-Temmma2 Self-guiding
At -25 tenpature
L=10minX8( No-binning), R=G=B=10minX1 ( 2X2 binning)
Soft-ware; Adbe Photo-shop CC, Stellaimage7
taken by koji matsumoto
M277