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偶然观察到的一颗同步卫星

2005年1月4日晚10点开始准备观测变星V474 MON。22:36分在找到目标后开始跟踪拍摄。在显示的照片上发现移动的星点,亮度较高。在连续拍摄的照片上可以观察到星点逐渐向东运动,但速度并不很快。

当时认为这是一颗经过的卫星,但感到有些奇怪的是它的速度很慢。

第二天处理了一下照片,发现与背景星相比,它的运动正好是周日视运动的速度,但方向相反,因此这是一颗同步静止的卫星。

1月6日雪后初晴。晚上再次观测。首先找到V474 MON,然后在22:28分开始拍摄,不出所料,卫星又进入了视场之中。停止跟踪,可以拍摄到静止的卫星。

照片上可以看到卫星约7等。在浏览拍摄的系列照片时发现卫星在地平高度上有明显的移动。