Astronomers

1
Carl Sagan (1934-1996)
2
Nicolaus Copernicus (1473-1543)
3
Benjamin Banneker (1731-1806)
4
Edwin Hubble (1889-1953)
5
Johannes Kepler (1571-1630)
6
Ibn Al-haytham (965-1040)
7
Tycho Brahe (1546-1601)
8
Maria Mitchell (1818-1889)
9
Anders Celsius (1701-1744)
10
Clyde Tombaugh (1906-1997)
11
William Herschel (1738-1822)
12
Annie Jump Cannon (1863-1941)
13
James Van Allen (1914-2006)
14
Caroline Herschel (1750-1848)
15
Henrietta Leavitt (1868-1921)
16
Nancy Grace Roman (1925-2018)
17
Nasir Al-din Al-Tusi (1201-1274)
18
Phil Plait, 55
19
Percival Lowell (1855-1916)
20
Ulugh Beg (1394-1449)
21
Giovanni Domenico Cassini (1625-1712)
22
Harlow Shapley (1885-1972)
23
George Mueller (1918-2015)
24
Charles Smyth (1819-1900)
25
Ole Romer (1644-1710)
26
A E Douglass (1867-1962)
27
Ormsby M. Mitchel (1810-1862)
28
David Rittenhouse (1732-1796)
29
Andrea Ghez, 55
30
Jan Oort (1900-1992)
31
John Herschel (1792-1871)
32
James Westphal (1930-2004)
33
Williamina Fleming (1857-1911)
34
Grote Reber (1911-2002)
35
Ernst Opik (1893-1985)
36
George Van Biesbroeck (1880-1974)
37
Norman Lockyer (1836-1920)
38
William Harkness (1837-1903)
39
Edward Sabine (1788-1883)
40
Jack Horkheimer (1938-2010)
41
Russell W. Porter (1871-1949)
42
Robert Stawell Ball (1840-1913)
43
Brian O'Leary (1940-2011)
44
Vytautas Straizys, 83
45
Sheila Widnall, 81
46
L'udmila Pajdusakova (1916-1979)
47
James E. Keeler (1857-1900)
48
Giovanni Schiaparelli (1835-1910)