1631年12月6日,金星发生了第一次预计的过境。 开普勒曾

1631年12月6日,金星发生了第一次预计的过境。 开普勒曾预言过,但他在事件发生前一年去世了。
原文:1631 Dec 6, The 1st predicted transit of Venus took place. It had been predicted by Kepler, but he died a year before the event.