Editing List of astronomers (section)

===G===
{{columns-list|colwidth=25em|
*[[Bryan Gaensler]] (Australia, 1973–)
*[[Gan De]] (China, fl. 4th century BC)
*[[Galileo Galilei]] (Italy, 1564–1642)
*[[Julio Garavito Armero]] ([[Colombia]], 1865–1920)
*[[Gordon J. Garradd]] (Australia, 1959–)
*[[Ben Gascoigne]] (New Zealand, Australia, 1915–2010)
*[[Margaret Geller]] (United States, 1947)
*[[Gautama Siddha]] (China, fl. 8th century AD)
*[[Johann Gottfried Galle]] (Germany, 1812–1910)
*[[George Gamow]] (Russia, United States, 1904–1968)
*[[Carl Friedrich Gauss]] (Germany, 1777–1855)
*[[Tom Gehrels]] (Netherlands, United States, 1925–2011)
*[[Neil Gehrels]] (United States, 1952–2017)
*[[Andrea M. Ghez]] (United States, 1965–)
*[[Riccardo Giacconi]] (Italy, 1931–2018)
*[[Michel Giacobini]] (France, 1873–1938)
*[[Henry L. Giclas]] (United States, 1910–2007)
*[[David Gill (astronomer)|David Gill]] (United Kingdom, 1843–1914)
*[[Fred Gillett (astronomer)|Fred Gillett]] (United States, 1937–2001)
*[[Karl Glazebrook]] (UK, 1965–)
*[[Ian Glass]] (Ireland/[[South Africa]], 1939–)
*[[Thomas Gold]] (United States, 1920–2004)
*[[Leo Goldberg]] (United States, 1913–1987)
*[[Peter Goldreich]] (United States, 1939–)
*[[Hermann Goldschmidt]] (Germany, 1802–1866)
*[[François Gonnessiat]] (France, 1856–1934)
*[[John Goodricke]] (United Kingdom, 1764–1786)
*[[Alyssa A. Goodman]] (United States, 1962–)
*[[Abu Sa'id Gorgani]] (Persia, 9th century)
*[[Paul Götz]] (Germany, 1883–1962)
*[[Benjamin Apthorp Gould]] (United States, 1824–1896)
*[[Andrew Graham (astronomer)|Andrew Graham]] (Ireland, 1815–1907)
*[[Kathryn Aurora Gray]] (Canada, 2000–)
*[[Charles Green (astronomer)|Charles Green]] (England, 1735–1771)
*[[Jesse Greenstein]] (United States, 1909–2002)
*[[John Grunsfeld]] (United States, 1956–)
*[[Jay U. Gunter]] (United States, 1911–1994)
*[[Alexander A. Gurshtein]] (Russia, 1937–2020)
*[[Bengt Gustafsson (astronomer)|Bengt Gustafsson]] (Sweden, 1943–)
*[[Guo Shoujing]] (China, 1231–1316)
*[[Alan Harvey Guth]] (United States, 1947–)
}}