M81星系和ta的小伙伴们
承德塞罕坝天文台
本图是由Seestar s30拍摄的M81，由45h的30s和3h的5s曝光的单帧叠加
Equipment
CameraSeestar S30
Telescope/LensSeestar S30
Shooting Data ( Shooting Date: 2026-03-27 )
Total Frames5312 x 30s + 1964 x 5s
Exposure44.2h，30s；2.7h，5s
Sky Coordinates
Right Ascension (RA)09h 59m 23.1s
Declination (Dec)+69° 13′ 02.5″
FOV Radius1.2221° (73.32′)
Pixel Scale3.994″/px
Rotation Angle1.79° E of N (Clockwise)
Parity正像
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