• Thumbnail for Extinction (astronomy)
    In astronomy, extinction is the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the...
    32 KB (3,488 words) - 21:03, 17 July 2024
  • term for mass attenuation coefficient), in physical sciences Extinction (astronomy) Extinction (optical mineralogy), when cross-polarized light dims, as...
    3 KB (335 words) - 00:06, 30 April 2024
  • In physics, attenuation (in some contexts, extinction) is the gradual loss of flux intensity through a medium. For instance, dark glasses attenuate sunlight...
    21 KB (2,642 words) - 01:54, 14 November 2024
  • Thumbnail for Dust lane
    medium Interplanetary dust Interstellar dust Intergalactic dust Extinction (astronomy) Star formation Sparke, L. S.; Gallagher, J. S. III (2007). Galaxies...
    2 KB (155 words) - 22:39, 1 July 2024
  • Thumbnail for Luminosity
    synonymous with the radiant power emitted by a light-emitting object. In astronomy, luminosity is the total amount of electromagnetic energy emitted per...
    24 KB (3,002 words) - 09:29, 25 September 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...
    161 KB (18,470 words) - 08:08, 9 October 2024
  • Thumbnail for Photometry (astronomy)
    In astronomy, photometry, from Greek photo- ("light") and -metry ("measure"), is a technique used in astronomy that is concerned with measuring the flux...
    29 KB (3,178 words) - 05:10, 24 October 2024
  • 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 (2,166 words) - 01:55, 16 October 2024
  • Thumbnail for Magnitude (astronomy)
    In astronomy, magnitude is a measure of the brightness of an object, usually in a defined passband. An imprecise but systematic determination of the magnitude...
    26 KB (2,920 words) - 02:31, 14 October 2024
  • Thumbnail for Asterism (astronomy)
    asterism in 2002. Australian Aboriginal astronomy Chinese constellation Nakshatra "An Etymological Dictionary of Astronomy and Astrophysics: asterism". Dictionary...
    29 KB (3,204 words) - 08:04, 4 November 2024
  • In astronomy, air mass or airmass is a measure of the amount of air along the line of sight when observing a star or other celestial source from below...
    35 KB (5,390 words) - 21:31, 23 September 2024
  • Thumbnail for Dark nebula
    it, such as background stars and emission or reflection nebulae. The extinction of the light is caused by interstellar dust grains in the coldest, densest...
    4 KB (416 words) - 17:47, 1 November 2024
  • Thumbnail for Outline of space science
    Stellar astronomy – concerned with Star formation, physical properties, main sequence life span, variability, stellar evolution and extinction. Galactic...
    11 KB (1,167 words) - 20:28, 17 May 2024
  • Thumbnail for Outline of astronomy
    Pretelescopic astronomy Babylonian astronomy Chinese astronomy Egyptian astronomy Greek astronomy Hebrew astronomy Indian astronomy Islamic astronomy Russian...
    43 KB (3,397 words) - 22:56, 20 October 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 (18,111 words) - 01:49, 14 November 2024
  • Thumbnail for Bolide
    Bolide (section Astronomy)
    extremely bright meteor, especially one that explodes in the atmosphere. In astronomy, it refers to a fireball about as bright as the full moon, and it is generally...
    7 KB (701 words) - 11:56, 24 October 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...
    217 KB (21,677 words) - 02:41, 15 November 2024
  • Thumbnail for Starlight
    Starlight (category Observational astronomy)
    measurement of starlight through telescopes is the basis for many fields of astronomy, including photometry and stellar spectroscopy. Hipparchus did not have...
    14 KB (1,695 words) - 03:06, 17 July 2024
  • Thumbnail for Star
    Star (redirect from Star (astronomy))
    oldest accurately dated star chart was the result of ancient Egyptian astronomy in 1534 BC. The earliest known star catalogues were compiled by the ancient...
    148 KB (16,417 words) - 17:02, 10 November 2024
  • Thumbnail for X-ray astronomy
    X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects. X-radiation...
    65 KB (8,115 words) - 13:32, 13 April 2024
  • Thumbnail for Zone of Avoidance
    Way cause extinction at optical wavelengths, and foreground stars can be confused with background galaxies. However, the effect of extinction drops at...
    5 KB (573 words) - 09:45, 13 November 2024
  • Thumbnail for Solar System
    2024. Retrieved 19 April 2024. "IAU Office of Astronomy for Education". astro4edu.org. IAU Office of Astronomy for Education. Archived from the original on...
    222 KB (21,901 words) - 11:03, 12 November 2024
  • (Lifetime album), 1992 Background (Bassi Maestro album), 2002 Background extinction rate Background independence, a condition in theoretical physics Background...
    2 KB (209 words) - 09:19, 18 September 2023
  • Thumbnail for Canopus
    Canopus (redirect from Canopus (astronomy))
    (2000). Astronomy and the Dreaming: The Astronomy of the Aboriginal Australians. Astronomy Across Cultures: The History of Non-Western Astronomy. Kluwer...
    62 KB (7,277 words) - 04:05, 7 November 2024
  • Thumbnail for Cosmic distance ladder
    no single technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second...
    54 KB (7,874 words) - 13:31, 20 October 2024
  • instrument, such as a telescope or microscope, or eye protection. In astronomy, the naked eye may be used to observe celestial events and objects visible...
    15 KB (1,845 words) - 19:08, 27 October 2024
  • Thumbnail for Aquila (constellation)
    "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18", Astronomy and Astrophysics, 628: A94,...
    36 KB (3,875 words) - 18:31, 10 October 2024
  • Thumbnail for HD 187420/187421
    "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv:1904...
    19 KB (1,353 words) - 03:30, 21 July 2023
  • Thumbnail for Impact event
    mass extinctions. The prehistoric Chicxulub impact, 66 million years ago, is believed to not only be the cause of the Cretaceous–Paleogene extinction event...
    108 KB (12,233 words) - 19:15, 11 November 2024
  • Maya astronomy is the study of the Moon, planets, Milky Way, Sun, and astronomical phenomena by the Precolumbian Maya civilization of Mesoamerica. The...
    50 KB (7,007 words) - 16:38, 29 October 2024