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紫金山天文台的觀测者於去年10月9日夜用3时折光遠镜觀测月面的時候(月歲爲17),偶然發現有很小的鳥從月面的方位飛過,繼續觀测之後再加以統計,知道在20分鍾(21時35分至55分)内有30雙鳥飛過月面;方向大致都是由東向西再略偏南,只有一雙的方向是相反的。那時風力微小,空氣穩定,平均42秒鍾内有一雙鳥飛過。
When the observers of the Zijin Mountain Observatory used the 3 o’clock telescope to observe the moon’s surface on the night of October 9 last year (month old was 17), they stumbled on a small bird that flew from the surface of the lunar surface and continued observation. After that, statistics were made that 30 pairs of birds flew over the moon’s surface within 20 minutes (21:35 to 55 minutes); the directions were generally from east to west and slightly southerly, with only one pair in the opposite direction. At that time, the wind was small and the air was stable. On average, two birds flew over 42 seconds.