O'Day

30.6S

157.5E

71

Marcus; American physicist (1897-1961).

Oberth

62.4N

155.4E

60

Hermann; Austrian space scientist (1894-1989).

Obruchev

38.9S

162.1E

71

Vladimir A.; Soviet geologist (1863-1956).

Oenopides

57.0N

64.1W

67

~ of Chios (500?-430 B.C.), Greek astronomer and geometrician; determined the inclination of the ecliptic to be 24° and determined the year to have 365-1/5 days.

Oersted

43.1N

47.2E

42

Hans Christian; Danish physicist, chemist (1777-1851).

Ohm

18.4N

113.5W

64

Georg Simon; German physicist (1787-1854).

Oken

43.7S

75.9E

71

Lorenz Okenfuss, or ~; German biologist, physiologist (1779-1851).

Olbers

7.4N

75.9W

74

Heinrich Wilhelm Malthaus; German astronomer, doctor (1758-

Olcott

20.6N

117.8E

81

William T.; American astronomer (1873-1936).

Olivier

59.1N

138.5E

69

Charles Pollard; American astronomer (1884-1975).

Omar-Khayyam

58.0N

102.1W

70

Al-Khayyami; Persian mathematician, astronomer, poet (c. 1050-1123).

Onizuka

36.2S

148.9W

29

Ellison Shoji; American test pilot and astronaut; member of the Challenger crew (1946-1986).

Opelt

16.3S

17.5W

48

Friedrich Wilhelm; German astronomer (1794-1863).

Oppenheimer

35.2S

166.3W

208

J. Robert; American physicist (1904-1967).

Oppolzer

1.5S

0.5W

40

Theodor Egon von; Czechoslovakian astronomer (1841-1886).

Oresme

42.4S

169.2E

76

Nicole; French mathematician (1323?-1382).

Orlov

25.7S

175.0W

81

Aleksandr V.; Soviet astronomer (1880-1954); Sergei V.; Soviet astronomer (1880-1958).

Orontius

40.6S

4.6W

105

Oronce Fine, or ~ Finnaeus; French mathemetician and cartographer (1494-1555).

Osama

18.6N

5.2E

0

Japanese male name.

Osiris

18.6N

27.6E

1

Egyptian god of the dead.

Osman

11.0S

6.2W

2

Turkish male name.

Ostwald

10.4N

121.9E

104

Wilhelm; German chemist; Nobel laureate (1853-1932).