Editing Kepler's Supernova (section)

==Observation==
Visible to the naked eye, Kepler's Star was brighter at its peak than any other [[star]] in the [[night sky]], with an [[apparent magnitude]] of −2.5. It was visible during the day for over three weeks. Records of its sighting exist in European, Chinese, Korean, and Arabic sources.<ref>Stephenson, F. Richard & Green, David A., ''Historical Supernovae and their Remnants'', Oxford, Clarendon Press, 2002, pp. 60–71.</ref><ref name="Arabic">{{cite journal|last1=Neuhäuser|first1=Ralph|last2=Rada|first2=Wafiq|last3=Kunitzsch|first3=Paul|last4=Neuhäuser|first4=Dagmar L.|title=Arabic Reports about Supernovae 1604 and 1572 in Rawḥ al-Rūḥ by cĪsā b. Luṭf Allāh from Yemen|journal=Journal for the History of Astronomy|date=2016|volume=47|issue=4|pages=359–374|doi=10.1177/0021828616669894|bibcode=2016JHA....47..359N|s2cid=125393243}}</ref>
[[File:Kepler Drawing of SN 1604.png|thumb|upright|left|[[Johannes Kepler]]'s original drawing from ''[[De Stella Nova]]'' (1606) depicting the location of the ''stella nova'', marked with an ''N'' (8 grid squares down, 4 over from the left)]]

It was the second supernova to be observed in a generation (after [[SN 1572]] seen by [[Tycho Brahe]] in [[Cassiopeia (constellation)|Cassiopeia]]). No further supernovae have since been observed with certainty in the Milky Way, though 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.<ref name=esopic>{{cite web |url=https://www.eso.org/public/images/eso0708a/|title=SN1987A in the Large Magellanic Cloud |date= 27 February 2019| website=ESO.org |publisher=European Southern Observatory |access-date=25 November 2019 }}</ref>

Evidence exists for two Milky Way supernovae whose electromagnetic radiation would have reached Earth {{abbreviation|c.|circa (about)}} 1680 and 1870 – [[Cassiopeia A]], and [[G1.9+0.3]] respectively. There is no historical record of either having been detected in those years, likely because absorption by [[Cosmic dust|interstellar dust]] obscured their visible light.<ref>{{cite web | title = Chandra X-Ray Observatory | work = Discovery of Most Recent Supernova in Our Galaxy, May 14, 2008 | url = http://chandra.harvard.edu/press/08_releases/press_051408.html | access-date = 2 May 2012}}</ref>

The [[supernova remnant|remnant]] of Kepler's supernova is considered to be one of the prototypical objects of its kind and is still an object of much study in [[astronomy]].<ref>{{Cite web|url=https://chandra.harvard.edu/photo/2012/kepler/|title=Chandra :: Photo Album :: Kepler's Supernova Remnant :: September 11, 2012|website=chandra.harvard.edu|access-date=2020-04-12}}</ref>