2025/01/18 RDAPH
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Remote Daily Astronomy Photograph
大犬座的红色十字弩-M41
Photographer
智利
M41是位于大犬座的一个疏散星团，其亮度很高，4.1的视星等在较低光害地区可以轻易裸眼目视。拍摄于智利台T2，RGBHa一共4小时出头。
Equipment
CameraFLI PL16083
Telescope/LensASA 500N
MountASA DDM85
FilterAstrodon LRGBHO
Shooting Data ( Shooting Date: 2025-01-05 )
Total FramesRGBHa=9,8,9,9
ExposureRGB180秒，Ha1200秒单张
Sky Coordinates
Right Ascension (RA)06h 46m 02.0s
Declination (Dec)-20° 46′ 32.7″
FOV Radius0.7575° (45.45′)
Pixel Scale0.964″/px
Rotation Angle91.02° E of N (Clockwise)
Parity正像
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