• Thumbnail for SN 1987A
    SN 1987A was a type II supernova in the Large Magellanic Cloud, a dwarf satellite galaxy of the Milky Way. It occurred approximately 51.4 kiloparsecs (168...
    47 KB (5,031 words) - 12:58, 15 November 2024
  • Thumbnail for Neutrino
    neutrinos from the SN 1987A supernova in the nearby Large Magellanic Cloud. These efforts marked the beginning of neutrino astronomy. SN 1987A represents the...
    141 KB (14,038 words) - 09:30, 1 December 2024
  • Thumbnail for Supernova
    modern astronomical telescopes. The most recent naked-eye supernova was SN 1987A, which was the explosion of a blue supergiant star in the Large Magellanic...
    201 KB (21,948 words) - 03:44, 14 December 2024
  • Thumbnail for Kepler's Supernova
    Kepler's Supernova (redirect from SN 1604)
    many others outside the galaxy have been seen since S Andromedae in 1885. SN 1987A in the Large Magellanic Cloud was visible to the naked eye at night. Evidence...
    16 KB (1,701 words) - 14:20, 11 December 2024
  • Keith Shelton (born 30 March 1957) is a Canadian astronomer who discovered SN 1987A, the first modern supernova close and bright enough to be visible to the...
    4 KB (400 words) - 22:52, 4 July 2024
  • Thumbnail for SN 2004dj
    SN 2004dj was the brightest supernova since SN 1987A at the time of its discovery.[citation needed] This Type II-P supernova was discovered by Japanese...
    3 KB (235 words) - 04:43, 28 November 2024
  • neutrino-neutrino interactions. The only supernova neutrino event detected so far is SN 1987A. Nevertheless, with current detector sensitivities, it is expected that...
    37 KB (4,416 words) - 13:10, 4 October 2024
  • Thumbnail for Supernova remnant
    speed. One of the best observed young supernova remnants was formed by SN 1987A, a supernova in the Large Magellanic Cloud that was observed in February...
    11 KB (1,231 words) - 18:29, 8 August 2024
  • Thumbnail for SN 2006gy
    its peak the SN 2006gy supernova was intrinsically 400 times as luminous as SN 1987A, which was bright enough to be seen by the naked eye, SN 2006gy was...
    12 KB (1,088 words) - 20:30, 22 August 2024
  • Thumbnail for SN 2023ixf
    Magnitude for 2011 Archived 2023-05-30 at the Wayback Machine (David Bishop) SN 1987A Supernova Discovered in Nearby Spiral Galaxy M101, Astronomy Picture of...
    8 KB (506 words) - 02:59, 21 November 2024
  • the action of MSW dynamics on SN neutrinos. Some effect of MSW flavor conversion has already been observed in SN 1987A. In the case of normal neutrino...
    14 KB (1,943 words) - 17:18, 15 June 2024
  • Thumbnail for Neil Gehrels
    for Observations of Nucleosynthetic Gamma-Ray Lines and Continuum from SN 1987A", N. Gehrels, C.J. MacCallum and M. Leventhal, ApJ, 320, L19. 1986, "Confidence...
    18 KB (2,319 words) - 21:06, 30 November 2024
  • Thumbnail for International Ultraviolet Explorer
    way interstellar dust absorbs light, and measurements of the supernova SN 1987A which showed that it defied stellar evolution theories as they then stood...
    59 KB (6,974 words) - 17:25, 24 November 2024
  • Thumbnail for Phil Plait
    astronomy at the University of Virginia in 1995 with a thesis on supernova SN 1987A, which he studied with the Supernova Intensive Study (SINS). During the...
    32 KB (2,550 words) - 14:10, 19 December 2024
  • Thumbnail for Blue supergiant
    it was believed that only red supergiants could explode as supernovae. SN 1987A, however, forced astronomers to re-examine this theory, as its progenitor...
    21 KB (2,513 words) - 04:33, 2 November 2024
  • cosmic rays are identified as forming in solar flares. 1987: Supernova SN 1987A emitted neutrinos that were detected at the Kamiokande-II, IMB and Baksan...
    17 KB (1,747 words) - 04:03, 14 December 2024
  • Thumbnail for Dorado
    gravitational interactions with the larger Milky Way. In 1987, it became host to SN 1987A, the first supernova of 1987 and the closest since 1604. This 25,000-light-year-wide...
    13 KB (1,473 words) - 18:28, 14 October 2024
  • Thumbnail for SN 1993J
    second-brightest type II supernova observed in the twentieth century behind SN 1987A, peaking at a visible apparent magnitude of 10.7 on March 30, with a second...
    8 KB (845 words) - 12:59, 15 November 2024
  • Thumbnail for Sanduleak -69 202
    Bibcode:1970CoTol..89.....S. Smith, N. (2007). "Discovery of a Nearby Twin of SN 1987A's Nebula around the Luminous Blue Variable HD 168625: Was Sk -69 202 an...
    4 KB (347 words) - 14:10, 9 December 2024
  • hypothesis by observing SN 1987a with the naked eye. The Kamiokande experiment, in Japan, independently observed neutrinos from SN 1987a at the same time. Judson...
    198 KB (23,245 words) - 02:10, 25 November 2024
  • supernovae SN 2006gy, SN 2005gj and SN 2005ap also suggest the existence of quark stars. It has been suggested that the collapsed core of supernova SN 1987A may...
    26 KB (3,070 words) - 18:34, 5 December 2024
  • Thumbnail for Type II supernova
    Neutrinos generated by a supernova were observed in the case of Supernova 1987A, leading astrophysicists to conclude that the core collapse picture is basically...
    49 KB (4,792 words) - 00:40, 25 August 2024
  • Thumbnail for Gamma ray
    spectra and emission half life). A classic example is that of supernova SN 1987A, which emits an "afterglow" of gamma-ray photons from the decay of newly...
    60 KB (7,399 words) - 23:43, 5 December 2024
  • Thumbnail for Light echo
    was in 1936, but it was not studied in detail. An example is supernova SN 1987A, the closest supernova in modern times. Its light echoes have aided in...
    20 KB (2,226 words) - 08:55, 12 September 2024
  • 79 PSR B1620−26 b 3C 58 Cas X-1 GW170817 Cygnus loop Spaghetti Nebula SN 1987A Jellyfish nebula Stellar designations and names Heger, A.; Fryer, C. L...
    9 KB (321 words) - 19:37, 21 December 2024
  • from the side. This also explains the "double-ring" structure seen in SN 1987A. A series of faint spokes radiate from the center of the structure. One...
    5 KB (421 words) - 13:09, 14 June 2024
  • Thumbnail for Astron (spacecraft)
    belt. Among the most important observations made by Astron were those of SN 1987A supernova from March 4 to March 12, 1987, and of Halley's Comet in December...
    8 KB (450 words) - 15:37, 26 October 2024
  • Thumbnail for Near-Earth supernova
    are based on atmospheric modeling and the measured radiation flux from SN 1987A, a Type II supernova in the Large Magellanic Cloud. Estimates of the rate...
    19 KB (2,065 words) - 02:34, 11 December 2024
  • Thumbnail for Luminous blue variable
    explosion would not occur at the LBV stage. Prompted by the progenitor of SN 1987A being a blue supergiant, and most likely an LBV, several subsequent supernovae...
    39 KB (4,826 words) - 10:40, 2 November 2024
  • 1952 1987 YA, a Mars-crossing asteroid discovered on December 18, 1987 SN 1987A, a supernova first seen in 1987 NGC 1987, a globular star cluster in the...
    1 KB (197 words) - 18:31, 27 October 2024