Promoted
M20+M8
Photographer
巴南七孔石
重庆巴南区七孔石，距离住主城区直线距离约40公里，四级光害地段，地景较差，适合深空，本来准备打创生之柱的，无奈平场镜忘记带，只能用70SA打这两个目标，设备抽风约两小时，最终各个通道仅4张。
Equipment
Camera ASI1600mm
Telescope/Lens 锐星107PH+1X平场
Mount IEQ30p
Filter 宇隆36mmUHC
Shooting Data ( Shooting Date: 2022-06-30 )
Total FramesHSO各个通道各四张
Exposure单张600秒，冷冻-3度，gain=50，offset=50
Sky Coordinates
Right Ascension (RA)18h 03m 22.3s
Declination (Dec)-23° 41′ 25.2″
FOV Radius1.8077° (108.46′)
Pixel Scale2.257″/px
Rotation Angle90.11° E of N (Clockwise)
Parity正像
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