Editing Comet (section)

=== Connection to meteor showers ===
As a comet is heated during close passes to the Sun, [[outgassing]] of its icy components releases solid debris too large to be swept away by [[radiation pressure]] and the solar wind.<ref>{{harvnb|Sagan|Druyan|1997|p=235}}</ref> If Earth's orbit sends it through that trail of debris, which is composed mostly of fine grains of rocky material, there is likely to be a [[meteor shower]] as Earth passes through. Denser trails of debris produce quick but intense meteor showers and less dense trails create longer but less intense showers. Typically, the density of the debris trail is related to how long ago the parent comet released the material.<ref name="sciam19990920">{{cite web |url=https://www.scientificamerican.com/article/what-causes-a-meteor-show/ |title=What causes a meteor shower? |work=[[Scientific American]] |first=Gregory A. |last=Lyzenga |date=20 September 1999 |access-date=21 November 2019}}</ref><ref name="natgeo20190207">{{cite web |url=https://www.nationalgeographic.com/science/space/reference/meteor-showers/ |archive-url=https://web.archive.org/web/20190507121359/https://www.nationalgeographic.com/science/space/reference/meteor-showers/ |url-status=dead |archive-date=7 May 2019 |title=Meteor showers, explained |work=[[National Geographic]] |first=Victoria |last=Jaggard |date=7 February 2019 |access-date=21 November 2019}}</ref> The [[Perseids|Perseid meteor shower]], for example, occurs every year between 9 and 13 August, when Earth passes through the orbit of [[Comet Swift–Tuttle]]. Halley's Comet is the source of the [[Orionids|Orionid shower]] in October.<ref name=showers>{{cite web |url=http://meteorshowersonline.com/major_meteor_showers.html |title=Major Meteor Showers |publisher=Meteor Showers Online |access-date=31 July 2013 |archive-url=https://web.archive.org/web/20130724111133/http://meteorshowersonline.com/major_meteor_showers.html |archive-date=24 July 2013 |url-status=dead}}</ref><ref>{{cite web |url=https://www.weather.gov/fsd/meteor |title=Meteors and Meteor Showers |publisher=United States National Weather Service |access-date=21 November 2019}}</ref>