NGC1491-化石足迹星云
Photographer
中国农科院研究生综合楼
NGC1491-化石足迹星云，叠加7个小时才勉强出来“足迹”。图1是叠加了之前的素材，双窄带拍了14个小时，感觉没有太大提升，周围的阴影也不好处理。
Equipment
Camera尼康D5100冷冻
Telescope/Lens天虎102APO PRO
Mount蛙星FT-17谐波赤道仪
Filter宇隆L-ultimate双窄带滤镜
Shooting Data ( Shooting Date: 2026-10-27 )
Total Frames175
Exposure单张300s
Other Info累计14.58h
Sky Coordinates
Right Ascension (RA)04h 03m 16.3s
Declination (Dec)+51° 16′ 15.4″
FOV Radius0.9439° (56.63′)
Pixel Scale1.378″/px
Rotation Angle266.69° E of N (Clockwise)
Parity镜像
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