Astronomlar listesi
Ünlü astronom ve astrofizikçiler listesi
__NOTOC__ Marc Aaronson (ABD, 1950 - 1987) George Ogden Abell (ABD, 1927 - 1983) Antonio Abetti (İtalya, 1846 - 1928) Ahmed-i Hani (Osmanlı, 1650 - 1707) Giorgio Abetti (İtalya, 1882 - 1982) Charles Greeley Abbot (ABD, 1872 - 1973) Charles Hitchcock Adams (ABD, 1868 - 1951) John Couch Adams (Birleşik Krallık, 1819 - 1892) Walter Sydney Adams (ABD, 1876 - 1956) Saul Adelman (ABD, (1944 -) Agrippa (Yunanistan, bilinmiyor – 92) Paul Oswald Ahnert (Almanya, 1897 - 1989) Eva Ahnert-Rohlfs (Almanya, 1912 - 1954) George Biddell Airy, (İngiltere, 1801 - 1892) Robert Aitken, (ABD, 1864 - 1951) Battani (Irak, 850 - 929) Vladimir Aleksandrovich Albitzky (Rusya) Albumasar (İran 787 - 886) George Alcock (Birleşik Krallık, 1913 - 2000) Harold Alden (ABD, 1890 - 1964) Hannes Alfvén (İsveç, 1908 - 1995) Ali Kuşçu (Osmanlı, 1403 - 1474) Lawrence H. Aller (ABD, 1913 - 2003) Abdurrahman es-Sufî, (İran, 903 - 986) Viktor Amazaspovich Ambartsumian, (Ermenistan, 1912 - 1996) John August Anderson, (ABD, 1876 - 1959) Andronicus of Cyrrhus Anders Jonas Ångström (İsveç, 1814 - 1874) Eugène Michel Antoniadi (Yunanistan, Fransa, 1870 - 1944) Petrus Apianus (Almanya, 1495 - 1557) François Arago (Fransa, 1786 - 1853) Sylvain Arend (Belçika, 1902 - 1992) Friedrich Wilhelm Argelander (Almanya, 1799 - 1875) Sisamlı Aristarkus, yaklaşık MÖ 310 – yaklaşık MÖ 230) Christoph Arnold (Almanya, 1650 - 1695) Svante Arrhenius (İsveç, 1859 - 1927) Arzachel (Endülüs, 1028 - 1087) Goryu Asada (Japonya, 1734 –1799) Giuseppe Asclepi (İtalya, 1706 - 1776) Joseph Ashbrook (ABD, 4 Nisan 1918 - 4 Ağustos 1980) Zeki Aslan (Türkiye, 25 Haziran 1940 –) Arthur Auwers (Almanya, 1838 - 1915) Adrien Auzout (Fransa, 1622 - 1691) Bîrûnî (İran, 973 - 1048) Walter Baade (Almanya, 1893 - 1960) Harold D. Babcock (ABD, 1882 - 1968) Horace W.