• Thumbnail for Astronomy
    Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry...
    98 KB (10,181 words) - 15:46, 21 March 2024
  • Thumbnail for History of astronomy
    Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical...
    81 KB (10,061 words) - 14:55, 4 March 2024
  • Thumbnail for Radio astronomy
    Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical...
    36 KB (3,828 words) - 18:22, 19 February 2024
  • Thumbnail for Sidewalk astronomy
    Sidewalk astronomy or street corner astronomy refers to the activity of setting up a telescope in an urban place on a for-profit or non-profit basis as...
    8 KB (685 words) - 04:41, 18 October 2023
  • In astronomy, an epoch or reference epoch is a moment in time used as a reference point for some time-varying astronomical quantity. It is useful for...
    24 KB (3,437 words) - 01:12, 5 December 2023
  • Thumbnail for Astronomy & Astrophysics
    Astronomy & Astrophysics (A&A) is a monthly peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics...
    22 KB (2,161 words) - 21:59, 15 November 2023
  • Thumbnail for Babylonian astronomy
    Babylonian astronomy was the study or recording of celestial objects during the early history of Mesopotamia. Babylonian astronomy seemed to have focused...
    46 KB (5,861 words) - 18:17, 16 January 2024
  • Thumbnail for Void (astronomy)
    Abell clusters. The new redshift surveys revolutionized the field of astronomy by adding depth to the two-dimensional maps of cosmological structure...
    37 KB (4,529 words) - 16:05, 4 January 2024
  • Thumbnail for Meridian (astronomy)
    In astronomy, the meridian is the great circle passing through the celestial poles, as well as the zenith and nadir of an observer's location. Consequently...
    4 KB (398 words) - 15:30, 1 March 2024
  • Thumbnail for Sun
    Sun (redirect from Sun (astronomy))
    Unsolved problem in astronomy: Why is the Sun's corona so much hotter than the Sun's surface? (more unsolved problems in astronomy) The temperature of...
    165 KB (18,869 words) - 03:40, 28 March 2024
  • Thumbnail for Ultraviolet astronomy
    Ultraviolet astronomy is the observation of electromagnetic radiation at ultraviolet wavelengths between approximately 10 and 320 nanometres; shorter...
    9 KB (854 words) - 07:39, 17 August 2023
  • Thumbnail for Observational astronomy
    Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which...
    26 KB (3,375 words) - 16:53, 28 February 2024
  • of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is...
    160 KB (18,354 words) - 18:11, 11 February 2024
  • Thumbnail for Indian astronomy
    Indian astronomy refers to astronomy practiced in the Indian subcontinent. It has a long history stretching from pre-historic to modern times. Some of...
    69 KB (7,671 words) - 10:56, 22 March 2024
  • to note [that] this period was called "Saron" by Chaldean authors of astronomy, … ) " … Sari mensura & numerus apud Chaldaeos, etenim 120 Sari constituunt...
    23 KB (2,925 words) - 13:11, 26 February 2024
  • text of the 1913 Catholic Encyclopedia article Astronomy in the Bible. Portals:  Bible  Religion  Astronomy  Stars  Outer space  Solar System  Science...
    13 KB (1,898 words) - 23:16, 22 February 2024
  • Thumbnail for Barycenter (astronomy)
    Animation of barycenters In astronomy, the barycenter (or barycentre; from Ancient Greek βαρύς (barús) 'heavy', and κέντρον (kéntron) 'center') is the...
    16 KB (1,485 words) - 16:00, 25 February 2024
  • Thumbnail for Milky Way
    direction. solar system portal outer space portal astronomy portal Baade's Window Galactic astronomy Galactic Center GeV excess Oort constants The distance...
    215 KB (21,195 words) - 01:49, 27 March 2024
  • Persian astronomy or Iranian astronomy refers to the astronomy in ancient Persian history. Ancient Persians celebrated the vernal equinox, summer solstice...
    6 KB (540 words) - 22:03, 8 March 2024
  • Thumbnail for Spherical astronomy
    Spherical astronomy, or positional astronomy, is a branch of observational astronomy used to locate astronomical objects on the celestial sphere, as seen...
    6 KB (662 words) - 17:07, 22 October 2023
  • Thumbnail for Constellation
    astrological divisions became prominent c. 400 BC in Babylonian or Chaldean astronomy. Constellations appear in Western culture via Greece and are mentioned...
    50 KB (5,382 words) - 01:06, 22 February 2024
  • Thumbnail for Amateur astronomy
    Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes...
    39 KB (4,575 words) - 15:37, 29 February 2024
  • Egyptian astronomy Hebrew astronomy Indian astronomy Maya astronomy Inuit astronomy Persian astronomy Serbian folk astronomy Tibetan astronomy Nakh...
    3 KB (280 words) - 21:07, 21 June 2023
  • Geodetic astronomy or astronomical geodesy (astro-geodesy) is the application of astronomical methods into geodetic networks and other technical projects...
    4 KB (425 words) - 23:24, 14 January 2024
  • Thumbnail for Solar System
    doi:10.1016/S0273-1177(03)00578-7. "IAU Office of Astronomy for Education". IAU Office of Astronomy for Education. Retrieved 11 December 2023. Bouvier...
    191 KB (19,958 words) - 17:13, 26 March 2024
  • Thumbnail for Astronomy in the medieval Islamic world
    Medieval Islamic astronomy comprises the astronomical developments made in the Islamic world, particularly during the Islamic Golden Age (9th–13th centuries)...
    70 KB (8,089 words) - 18:21, 19 March 2024
  • Infrared astronomy is a sub-discipline of astronomy which specializes in the observation and analysis of astronomical objects using infrared (IR) radiation...
    22 KB (2,335 words) - 18:23, 5 January 2024
  • Thumbnail for Galactic astronomy
    Galactic astronomy is the study of the Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything...
    4 KB (367 words) - 11:43, 22 October 2023
  • Thumbnail for Syzygy (astronomy)
    In astronomy, a syzygy (/ˈsɪzədʒi/ SIZ-ə-jee; from Ancient Greek συζυγία (suzugía) 'union, yoke') is a roughly straight-line configuration of three or...
    6 KB (688 words) - 00:35, 21 November 2023
  • Thumbnail for Conjunction (astronomy)
    In astronomy, a conjunction occurs when two astronomical objects or spacecraft appear to be close to each other in the sky. This means they have either...
    29 KB (3,558 words) - 20:24, 19 March 2024