page_title: Comet of 1472
hierarchical_section_title: Comet of 1472
caption_attribution_description: Deutsch: Holzschnitt aus der Schedel'schen Weltchronik (lateinische Ausgabe in Sao Paulo), Blatt 229 recto English: Woodcut from the Nuremberg Chronicle (Latin edition in Sao Paulo)
context_page_description: The comet of 1472 was visible from Christmas Day 1471 to 1 March 1472, for a total of 59 days.
  The comet is notable because it was observed by 15th-century astronomers, during a time of rapid progress in planetary theory, shortly before the Copernican Revolution.
  The comet was observed by Regiomontanus and Bernhard Walther from Nuremberg.
  Regiomontanus tried to estimate its distance from Earth, using the parallax.
  According to Seargeant:
  In agreement with the prevailing Aristotelian theory on comets as atmospheric phenomena, he estimated its distance to be at least 8,200 miles and, from this, estimated the central condensation as 26, and the entire coma as 81 miles in diameter. These values, of course, fail by orders of magnitude, but he is to be commended for this attempt at determining the physical dimensions of the comet.
  An Italian physician named Angelo Cato de Supino also left a description of the comet, claiming it was as bright as the full moon, its tail extending over more than 30 degrees.
  The comet was also observed in Chinese astronomy, where it is noted that it was visible even at midday.
context_section_description: The comet of 1472 was visible from Christmas Day 1471 to 1 March 1472 (Julian Calendar), for a total of 59 days.
  The comet is notable because it was observed by 15th-century astronomers, during a time of rapid progress in planetary theory, shortly before the Copernican Revolution.
  The comet was observed by Regiomontanus and Bernhard Walther from Nuremberg.
  Regiomontanus tried to estimate its distance from Earth, using the parallax.
  According to   Seargeant (2009):
  In agreement with the prevailing Aristotelian theory on comets as atmospheric phenomena, he estimated its distance to be at least 8,200 miles (13,120 km) and, from this, estimated the central condensation as 26, and the entire coma as 81 miles (41.6 and 129.6 km respectively) in diameter. These values, of course, fail by orders of magnitude, but he is to be commended for this attempt at determining the physical dimensions of the comet.
  An Italian physician named Angelo Cato de Supino also left a description of the comet, claiming it was as bright as the full moon, its tail extending over more than 30 degrees.
  The comet (or  "broom star") was also observed in Chinese astronomy, where it is noted that it was visible even at midday.
  The 15th century English Chronicler, Warkworth, left a detailed account of the comet's appearance and disappearance from the night sky of England.
caption: The comet of 1472 depicted in the Nuremberg Chronicle  (1493)
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