 | Odette Bancilhon was a French astronomer. She is known for her work during the 1930s and 1940s... more » |
| Okuro Oikawa was a Japanese astronomer. He discovered 8 asteroids. The asteroid 2667 Oikawa is... more » |
.jpg/240px-Rømer,_Ole_(ur_Berømte_danske_maend).jpg "Ole Rømer") | Ole Christensen Rømer was a Danish astronomer who in 1676 made the first quantitative... more » |
| Olin Chaddock Wilson was an American astronomer best known for his work as a stellar... more » |
 | Olin Jeuck Eggen was an American astronomer. more » |
 | Ghiyāth ad-Dīn Abu'l-Fatḥ ʿUmar ibn Ibrāhīm al-Khayyām Nīshāpūrī was a Persian polymath,... more » |
| Orlando Antonio Naranjo Villarroel è un astronomo venezuelano. È professore all'Università delle... more » |
 | Ormond Stone, was an astronomer, mathematician and educator. He was the director of Cincinnati... more » |
| Osamu Muramatsu is a Japanese astronomer, and is a prolific discoverer of asteroids. He also... more » |
 | Johan Oskar Backlund was a Swedish-Russian astronomer. His name is sometimes given as Jöns Oskar... more » |
 | Otto August Rosenberger was a Baltic German astronomer from Tukums in Courland. Rosenberger... more » |
| Otto Eduard Neugebauer was an Austrian-American mathematician and historian of science who... more » |
.jpg/231px-ESO_Director_General_Prof._Otto_Heckmann_(painting).jpg "Otto Heckmann"){kind=spacer} | Otto Hermann Leopold Heckmann was a German astronomer. He directed the Hamburg Observatory from... more » |
| Otto Leberecht Lesser was a German astronomer who co-discovered asteroid 62 Erato with Wilhelm... more » |
 | Otto Struve was a Russian–American astronomer. In Russian, his name is sometimes given as Otto... more » |
| Otto Wilhelm von Struve was a Russian astronomer. In Russian, his name is normally given as Otto... more » |
 | Owen Jay Gingerich is a former Research Professor of Astronomy and of the History of Science at... more » |
