1646年8月19日：John Flamsteed诞辰

1646年8月19日，John Flamsteed出生于英国德比郡。尽管因病和家庭原因早早辍学，他仍通过自学钻研天文学，并最终进入剑桥大学深造。

On Aug. 19, 1646, John Flamsteed was born in Derbyshire, England. Though he left school early due to illness and family obligations, he studied astronomy independently and eventually attended Cambridge University. European maritime trade was rapidly expanding during his lifetime, yet sailors still struggled with the longitude problem – north-south distance was easy to calculate Continue reading "Aug. 19, 1646: The birth of John Flamsteed" The post Aug. 19, 1646: The birth of John Flamsteed appeared first on Astronomy Magazine .