20171224 Parts of SH 2 240 / Spaghetti nebula

Parts of SH2-240.
600s * 13 = 130 mins. w/bias darks flats.
Takahashi Epsilon180ED, STF8300m, Hα 3nm at -10°C.
Vixen SXP, M-Gen guider Kowa100/2.8.
SH2-240_Ha600nm3_x13_STF_TGVDenoise_all