Space history timeline
3 records
1840s
3 records
1842
Solar corona interpreted as an atmosphere
Francis Baily’s eclipse observations supported interpreting the corona as part of the Sun.
1843
Schwabe identifies the sunspot cycle
Heinrich Schwabe identified a recurring pattern in sunspot numbers after years of observation.
1846
Neptune discovered
Category: Discoveries and Scientific Results, type: Discovery
Johann Galle observed Neptune after its position had been predicted from planetary-motion calculations.
