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主题: M 31
作者: Ashley Roeckelein
望远镜: WO ZenithStar Fluorite Doublet
其他配件:Canon 350D (拿掉了内建的IRB 滤镜) ISO800,
+0.8x 减焦镜,
+IDAS LPS 滤镜,
+G-11 赤道仪,
+f/11 导星镜
+GuideDog 计算机软件.
曝光时间:17x180秒
拍摄地点与视像状况:
拍摄日期:2005年12月9日
附注:

 

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