Originally posted by 小酒蟲 at 2005-12-26 15:39: 360 x (15/86400) = 0.0625 因此曝光 15 秒之後,可得已轉了 0.0625° 的星軌。 (應該是這樣算沒錯吧?) [ Last edited by 小酒蟲 on 2005-12-25 at 23:40 ]