1631: On 6 December 1631, the transit of Venus occurred as first predicted by Kepler.
He correctly predicted that a transit of Venus would occur but nobody observed it due to the fact that it occurred after sunset for most of Europe. He not only predicted this particular transit but also worked out that transits of Venus involve a cyclic period of approximately 120 years.
Modh meán
4 December
3 December
2 December
Fan suas chun dáta
Liostáil lenár nuachtlitir chun an nuacht is déanaí, nuashonruithe misin, agus léargas eisiach a fháil go díreach i do bhosca isteach. Bí ar an gcéad duine a bheidh ar an eolas faoinár dtionscadail agus ár ndul chun cinn atá le teacht.