獵戶座左旁的巴納德星雲環
在台灣大雪山拍攝深空天體之八獵戶座左旁的巴納德星雲環, 相信是獵戶座M42大星雲的恆星風 , 把氣體吹離星雲 , 並受鄰近的星光激發而發光 . Orion and Barnard’s Loop ,2016/12/03, HKT 22h08m to 22h44m,Canon ESO700D Camera, IR Low passfilter removed. Canon Zoom Lens EF 50-200mm, Set atf.l. 135 mm, f/5.6, , ISO 1600, Exposure 60sec.for each frame.With motor drived Halley Equatorial Mounting.Atmospherictransparent : 7/10, Seeing : 8/10.ManualObject Targeting. Processed andstacked by free soft- ware Deep Sky Stacker with 10 Light frames, 10 Darkframes, 10 Bias frames, 8 Flat frames. Post processing by Microsoft Office.Taken at台灣大雪山賓館 ,Tai Chung,Tai Wan
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