窄帶版天鵝座 NGC6888、6883、6871

不太懂得合成這類照片,個人也不太喜歡這風格,隨手玩玩。
APM 105/650 APO
FLI Proline 16803 相機
Astrodon 5nm Ha, 3nm OIII, 3nm SII 濾鏡
Paramount autoguided by STi & self-built OAG
攝於我的西藏天文台
Ha = 5x1800s, SII = 6x1800s, OIII = 6x1800s
共8.5小時曝光
33% 出圖
這天區的SII訊息很弱
APM 105/650 APO
FLI Proline 16803 相機
Astrodon 5nm Ha, 3nm OIII, 3nm SII 濾鏡
Paramount autoguided by STi & self-built OAG
攝於我的西藏天文台
Ha = 5x1800s, SII = 6x1800s, OIII = 6x1800s
共8.5小時曝光
33% 出圖
這天區的SII訊息很弱