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NGC6888 氢海中的眉月
Photographer
山西灵丘蛙星天文台
趁着天鹅座的尾巴拍摄了这个目标,替换了rgb星点。
NGC 6888又称眉月星云、新月星云或Caldwell 27,是天鹅座内编号为C 27的发射星云,距离地球约4700-5000光年。该星云宽度约25光年,中央恒星为沃尔夫-拉叶星HD192163(WR 136)其质量约为太阳的15-21倍,半径约为太阳的5.1倍,表面温度高达7万度
Equipment
Camera图谱 2600M
Telescope/Lens信达小黑150/750
Mount蛙牌 FT-17
Filter图谱36mm 4nm LRGBSHO
Shooting Data ( Shooting Date: 2026-10-24 )
Total FramesH:48 O:60 rgb各12*90
Exposure9h
Sky Coordinates
Right Ascension (RA)20h 12m 09.0s
Declination (Dec)+38° 22′ 12.3″
FOV Radius1.0628° (63.77′)
Pixel Scale1.032″/px
Rotation Angle90.38° E of N (Clockwise)
Parity正像
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