History of Astronomy

Adams, Walter Sydney (1876–1956)

Airy, George Biddell (1801–1892)

Aitken, Robert Grant (1864–1951)

Alfonsine Tables

Almanacs, Astronomical

Amateurs In Astronomy

Ambartsumian, Viktor Amazaspovich (b. 1908)

Ancient World, Astronomy in

Anglo-Australian Observatory

Arabic/Islamic Astronomy

Archaeoastronomy

Argelander, Friedrich Wilhelm August (1799–1875)

Argentine National Observatory

Aristarchus of Samos (ca. 310–230 b.c.e.)

Aristotle, the Astronomy of

Armillary Sphere

Asada, Goryu (1734–1799)

Association of Universities for Research in Astronomy (AURA)

Asteroids

Astrograph

Astrolabe

Astrology

Astrometry

Astronomers Royal

Astronomy

Astrophysics

Atlases, Astronomical

Australia and New Zealand, Astronomy in

Baade, Wilhelm Heinrich Walter (1893–1960)

Babylonian Astronomy

Banneker, Benjamin (1731–1806)

Barnard, Edward Emerson (1857–1923)

Barringer Meteor Crater

Berlin Observatory

Bessel, Friedrich Wilhelm (1784–1846)

Bethe, Hans Albrechte (1906-)

Black Holes

Bowen, Ira Sprague (1898–1973)

Brahe, Tycho (1546–1601)

Brashear, John Alfred (1840–1920)

Brouwer, Dirk (1902–1966)

Brown, Ernest William (1866–1938)

Burnham, Sherburne Wesley (1838–1921)

Calendars

California Institute of Technology, Astronomy at

Cambridge University, Astronomy at

Campbell, William Wallace (1862–1938)

Canadian Astronomy

Canals of Mars

Cannon, Annie Jump (1863–1941)

Caracol at Chichén Itzá

Carnegie Institution of Washington, Observatories of

Cassini de Thury, César-François (1714–1784)

Cassini, Gian Domenico (Jean-Dominique) (1625–1712)

Cassini, Jacques (1677–1756)

Cassini, Jean-Dominique (1748–1845)

Catalogues, Astronomical

Catholic Church, Astronomy and

Celestial Mechanics

Cerro Tololo Interamerican Observatory

Chaco Canyon

Chamberlin-Moulton Hypothesis

Chandrasekhar, Subrahmanyan (1910–1995)

Chinese Astronomy

Chronograph

Clairaut, Alexis-Claude (1717–1765)

Clark, Alvan (1804–1887)

Clark, Alvan Graham (1832–1897)

Clark, George Bassett (1827–1891)

Clemence, Gerald M. (1908–1974)

Coast and Geodetic Survey

Cometary Astronomy

Constants, Astronomical

Constellations

Copernican Revolution

Copernicus, Nicholas (1473–1543)

Cosmology, Ancient Greek

Cosmology, Contemporary

Cosmology, Medieval

Cosmology, Modern

Crabtree, William (1610–1644?)

Crimean Astrophysical Observatory

Cross-Staff

David Dunlap Observatory

Delambre, Jean-Baptiste Joseph (1749–1822)

Delisle, Joseph-Nicolas (1688–1768)

Dembowski, Ercole (1812–1881)

Dominion Astrophysical Observatory

Double Star Astronomy

Draper Catalogue of Stellar Spectra

Draper, Henry (1837–1882)

Dreyer, Johann Louis Emil (1852–1926)

Eclipses of the Sun

Eddington, Arthur Stanley (1882–1944)

Education of Astronomers

Eratosthenes (ca. 276 b.c.e.-ca. 195 b.c.e.)

Euler, Leonhard (1707–1783)

European Southern Observatory (ESO)

Expeditions, Astronomical

Extraterrestrial Intelligence

Fesenkov, Vasilii Grigor'evich (1889–1972)

Fitz, Henry (1808–1863)

Flammarion, Camille (1842–1925)

Flamsteed, John (1646–1719)

Fleming, Williamina Paton (1857–1911)

France, Astronomy in

Funding Astronomy

Galaxies

Galilei, Galileo (1564–1642)

Gamma-Ray Astronomy

Gerasimovich Boris Petrovich (1889–1937)

Germany, Astronomy since 1600

Gill, David (1843–1914)

Globes, Celestial

Goodricke, John (1764–1786)

Great Britain, Astronomy in

Great Pyramid

Hagihara, Yusuke (1897–1979)

Hale, George Ellery (1868–1938)

Halley, Edmond (1656?-1743)

Hansen, Peter Anderas (1795–1874)

Harriot, Thomas (1560?–1621)

Harvard College Observatory

Heliometer

Herget, Paul (1908–1981)

Herschel, Alexander Stewart (1836–1907)

Herschel, Caroline Lucretia (1750–1848)

Herschel, John Frederick William (1792–1871)

Herschel, William (1738–1822)

Hertzsprung, Ejnar (1873–1967)

Hertzsprung-Russell Diagram

Hevelius, Johannes (1611–1687)

Hill, George William (1838–1914)

Hipparchus of Rhodes (Second Century b.c.e.)

Hirayama, Kiyotsugu (1874–1943)

Horrocks, Jeremiah (1619?-1641)

Hubble, Edwin Powell (1889–1953)

Hubble Space Telescope

Huggins, William (1824–1910)

Infrared Astronomy

Ino, Tadataka (1745–1818)

Instruments, Astronomical

Interferometer

International Astronomical Union (IAU)

Italy, Astronomy in (from the Seventeenth Century)

Janssen, Pierre Jules César (1824–1907)

Japan, Astronomy in

Jeans, James Hopwood (1877–1946)

Jet Propulsion Laboratory, Astronomy at

Jupiter

Kapteyn, Jacobus Cornelius (1851–1922)

Kepler, Johannes (1571–1630)

Kirchhoff, Gustav Robert (1824–1887)

Kitt Peak National Observatory

Kuiper, Gerard Peter (1905–1973)

Kukarkin, Boris Vasil'evich (1909–1977)

Lacaille, Nicolas-Louis de (1713–1762)

Lagrange, Joseph Louis (1736–1813)

Lalande, Joseph-Jérôme Lefrançais de (1732–1807)

Laplace, Pierre-Simon, Marquis de (1749–1827)

Latin America, Astronomy in

Le Verrier, Urbain Jean Joseph (1811–1877)

Lick Observatory

Lindblad, Bertil (1895–1965)

Literature and Astronomy

Lockyer, Joseph Norman (1836–1920)

Lowell Observatory

Magellanic Clouds

Mars

Masevich, Alla Genrikhovna (1918-)

Medieval Astronomy

Mercury

Meridian Instruments

Messier, Charles (1730–1817)

Meteoric Astronomy

Meudon Observatory

Michelson, Albert Abraham (1853–1931)

Micrometer

Mikhailov, Aleksandr Aleksandrovich (1888–1983)

Milne, Edward Arthur (1896–1950)

Minkowski, Rudolph Leo Bernhard (1895–1976)

Mitchell, Maria (1818–1889)

Moon (Earth's)

Moscow Observatory

Moulton, Forest Ray (1872–1952)

Multiple Mirror Telescopes

Mural Quadrant

Nançay Radio Astronomy Station

National Aeronautics and Space Administration (NASA)

Nautical Almanac Offices

Navigation by Astronomical Methods

Nebular Hypothesis

Neptune

Neptune, Discovery of

Netherlands, Astronomy in

Newcomb, Simon (1835–1909)

Newton, Hubert Anson (1830–1896)

Newton, Isaac, Astronomy of

Novae and Supernovae

Numerov, Boris Vasil'evich (1891–1941)

Observatories

Octant

Olbers's Paradox

Oort, Jan Hendrik (1900–1992)

Optical Astronomy from Space

Optical Glass-Making

Oxford University, Astronomy at

Palomar Observatory

Paris Observatory

Parsons, William, Third Earl of Rosse (1800–1867)

Payne-Gaposchkin, Cecilia (1900–1979)

Phillips, Theodore Evelyn Reece (1868–1942)

Photography, Astronomical

Photoheliograph

Photometer

Photometry, Astronomical

Physics and Astronomy

Piazzi, Giuseppe (1746–1826)

Pickering, Edward Charles (1846–1919)

Planetariums

Planetary Satellites

Plaskett, John Stanley (1865–1941)

Plato, Astronomy of (427–348/347 b.c.e.)

Pluto

Poincaré, Jules Henri (1854–1912)

Potsdam Astrophysical Observatory

Princeton University, Astronomy at

Proctor, Richard Anthony (1837–1888)

Proper Motion

Ptolemy of Alexandria (second century C.E.)

Publications, Astronomical

Pulkovo Observatory

Pythagoras of Samos, Astronomy of

Radial Velocity (Stellar)

Radio Astronomy

Radio Telescopes

Relativity and Astronomy

Reward System in Modern Astronomy

Ritchey, George Willis (1864–1945)

Rittenhouse, David (1732–1790)

Rowland, Henry Augustus (1848–1901)

Royal Greenwich Observatory

Russell, Henry Norris (1877–1957)

Russian Astronomy (to the Revolution)

Saha, Meghnad (1893–1956)

Saturn

Scheiner, Julius (1858–1913)

Schiaparelli, Giovanni Virginio (1835–1910)

Schlesinger, Frank (1871–1943)

Schmidt Telescopes

Schröter, Johann Hieronymus (1745–1816)

Schwarzschild, Karl (1873–1916)

Scientific Revolution, Astronomy in

Secchi, (Pietro) Angelo (1818–1878)

Seeing, Astronomical

Seeliger, Hugo Ritter von (1849–1924)

Selenography

SETI (Search for Extraterrestrial Intelligence) Project

Sextant

Shain, Grigorii Abramovich (1892–1956)

Shapley, Harlow (1885–1972)

Shizuki, Tadao (1760–1806)

Shklovskii, losif Samuilovich (1916–1985)

Slipher, Vesto Melvin (1875–1969)

Smyth, Charles Piazzi (1819–1900)

Solar Constant

Solar Parallax

Solar Physics

Solar System Astronomy

Solar Tower Telescope

Somerville, Mary Fairfax Greig (1780–1872)

South African Astronomical Observatory

Soviet Astronomy

Spectroheliograph

Spectroscopes and Spectrographs

Spectroscopy, Astronomical

Star Names

Stellar Energy Problem

Stellar Parallax

Stellar Statistics

Stonehenge

Stromgren, Bengt (1908–1987)

Struve, Friedrich Georg Wilhelm (Vasily Yakovlevich) (1793–1864)

Struve, Georg Otto Hermann (1886–1933)

Struve, Gustav Wilhelm Ludwig (Ludwig Ottovich) (1858–1920)

Struve, Karl Hermann (Hermann Ottovich) (1854–1920)

Struve, Otto (1897–1963)

Struve, Otto Wilhelm (Otton Vasilievich) (1819–1905)

Sundials

Tables and Ephemerides, Astronomical

Telescope, Invention of (to ca. 1630)

Telescopes, from Galileo to Fraunhofer

Telescopes since 1820

Tidal Theory

Time and Timekeeping Instruments

Tisserand, François Félix (1845–1896)

Ultraviolet Astronomy

Ulugh Beg (1394–1449)

United States Naval Observatory

United States of America, Astronomy in

University of Arizona, Astronomy at

University of California, Astronomy at

University of Chicago, Astronomy at

Uranus

Variable Star Astronomy

Variation of Latitude

Venus

Venus, Transits of

Wildt, Rupert (1905–1976)

Wolf-Rayet Stars

Women in Astronomy

X-ray Astronomy

Yale University, Astronomy at

Yerkes Observatory

Zeiss, Carl (1816–1888)

Zenith Telescope

Zwicky, Fritz (1898–1974)