• VIRGOHI21 is an extended region of neutral hydrogen (HI) in the Virgo cluster discovered in 2005. Analysis of its internal motion indicates that it may...
    10 KB (1,138 words) - 20:02, 29 July 2024
  • bright light from the quasars. In 2005, astronomers discovered gas cloud VIRGOHI21 and attempted to determine what it was and why it exerted such a massive...
    20 KB (2,147 words) - 06:23, 9 October 2024
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    position angle of 68°. A bridge of neutral hydrogen gas links NGC 4254 with VIRGOHI21, an HI region and a possible dark galaxy. The gravity from the latter...
    11 KB (919 words) - 13:08, 9 March 2024
  • (no stars), a remnant of the formation of the Local Group. Dark galaxy VIRGOHI21 LSB galaxy "HVC 127-41-331". SIMBAD. Centre de données astronomiques de...
    2 KB (197 words) - 00:54, 27 January 2022
  • least luminous galaxy known (discounting possible dark galaxies such as VIRGOHI21 in the Virgo cluster of galaxies), after the Boötes Dwarf (absolute magnitude...
    4 KB (376 words) - 20:54, 1 July 2023
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    February 2005, astronomers using the Lovell Telescope discovered the galaxy VIRGOHI21 that appears to be made almost entirely of dark matter. A 1:200 scale...
    50 KB (5,510 words) - 16:31, 19 August 2024
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    experiments Potential dark galaxies HE0450-2958 HVC 127-41-330 Smith's Cloud VIRGOHI21 Related Antimatter Dark energy Exotic matter Galaxy formation and evolution...
    13 KB (1,323 words) - 11:53, 9 August 2024
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    Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi VIRGOHI21...
    7 KB (584 words) - 12:52, 17 September 2024
  • 2005). February 23 – Astronomers announce the discovery of a galaxy, VIRGOHI21, that consists almost entirely of dark matter. March 23 – Two independent...
    14 KB (1,546 words) - 17:08, 16 June 2024
  • Thumbnail for UniverseMachine
    experiments Potential dark galaxies HE0450-2958 HVC 127-41-330 Smith's Cloud VIRGOHI21 Related Antimatter Dark energy Exotic matter Galaxy formation and evolution...
    8 KB (872 words) - 00:42, 19 August 2024
  • Thumbnail for IOK-1
    Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi VIRGOHI21...
    3 KB (234 words) - 00:35, 2 March 2024
  • Thumbnail for Coma Star Cluster
    Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi VIRGOHI21...
    5 KB (389 words) - 05:08, 27 June 2024
  • Thumbnail for SN 2006X
    Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi VIRGOHI21...
    3 KB (242 words) - 13:02, 15 November 2024
  • Thumbnail for GRB 050509B
    Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi VIRGOHI21...
    2 KB (173 words) - 01:56, 9 August 2024
  • Balakrishnan (physicist) V838 Monocerotis VELO VEPP-2000 VINITI Database RAS VIRGOHI21 VNIR VORPAL V band V particle Vacancy defect Vacuum Vacuum Rabi oscillation...
    6 KB (676 words) - 15:20, 11 February 2024