1930: On 23 January 1930, Clyde Tombaugh photographed the planet Pluto.
Tombaugh had first photographed Pluto, while searching for the planet in the Delta Geminorum region, on 21 January 1930. Strong winds on the night moved the telescope and blurred the image.
He made further exposures on 23 January and 29 January. On checking them on 18 February 1930, the planet Pluto was seen on these photographic plates.
Modh meán
21 January
19 January
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.