William Stephen Finsen, Date of Birth, Place of Birth, Date of Death
TweetWilliam Stephen Finsen
South African astronomer
Date of Birth: 28-Jul-1905
Place of Birth: Johannesburg, Gauteng, South Africa
Date of Death: 16-May-1979
Profession: astronomer
Nationality: South Africa
Zodiac Sign: Leo 
About William Stephen Finsen
- William Stephen Finsen FRAS (28 July 1905 – 16 May 1979) was a South African astronomer.
- He discovered a number of double stars and took many photographs of Mars.
- He developed the Finsen eyepiece interferometer to measure very close double stars.
- He was the final director of Union Observatory in South Africa from 1957 to 1965 (it was renamed Republic Observatory in 1961).
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