深空、觀測記錄 20171224 Parts of SH 2 240 / Spaghetti nebula 2017-12-24 admin 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.