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