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2026-07-13T19:11:15Z
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2022-04-12T05:14:41Z
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WikiSysop: Bot: Automatska zamjena teksta (-{{Komet +{{Infookvir komet)
2021-12-13T09:17:45Z
<p>Bot: Automatska zamjena teksta (-{{Komet +{{Infookvir komet)</p>
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WikiSysop: Bot: Automatski unos stranica
2021-12-09T09:44:56Z
<p>Bot: Automatski unos stranica</p>
<p><b>Nova stranica</b></p><div><!--'''C/2020 F8 (SWAN)'''-->{{Komet<br />
| ime = C/2020 F8 SWAN<br />
| slika = C 2020 F8 SWAN.jpg<br />
| opis_slike = Putanja kometa SWAN kroz unutarnji [[Sunčev sustav]].<br />
| otkrio = Solar and Heliospheric Observatory (SOHO)<br />
| datum_otkrića = 25. ožujka 2020.<br />
| epoha = 17. travnja 2020.<br />
| klasifikacija = [[hiperbolični komet]]<br />
| SPK-ID = <br />
| ekscentricitet = ~1,000<br />
| srednja_udaljenost = <br />
| perihel = 0,43 AJ<br />
| afel = nepoznat<br />
| orbitalni_period = nepoznat<br />
| inklinacija = 110,8°<br />
| srednja_anomalija = -.004°<br />
| longituda_uzlaznog_čvora = 260.04°<br />
| argument_perihela = 68.16°<br />
| posljednji_perihel = <br />
| sljedeći_perihel = 27. svibnja 2020<br />
| Tisserandov_parametar = 2.33949 AJ<br />
| najveći_sjaj = <br />
| dimenzije = <br />
| srednji_promjer = <br />
| masa = <br />
| srednja_gustoća = <br />
| brzina_oslobađanja = <br />
| period_rotacije = <br />
| albedo = <br />
| prividna_magnituda =7,0 <br />
| ukupna_magnituda =<br />
| jezgrina_magnituda =<br />
| pozicija_ref = <ref>{{JPL|C/2020 F8}}</ref><br />
}}<br />
<br />
'''C/2020 F8 (SWAN)''', ili '''komet SWAN,''' je [[komet]] koji je otkrio astronom M. Mattiazzo na slikama koje je snimila SWAN kamera [[25. ožujka]] [[2020.]] na svemirskoj letjelici [[SOHO|Solar Heliospheric Observer (SOHO)]].<ref name="MPC">{{Citiranje weba|url=https://minorplanetcenter.net/mpec/K20/K20G94.html|title=MPEC 2020-G94 : COMET C/2020 F8 (SWAN)|work=minorplanetcenter.net|accessdate=2020-04-16}}</ref> <ref name="UT">{{Citiranje weba|url=https://www.universetoday.com/145617/comet-y4-atlas-breaks-up-enter-comet-f8-swan/|title=Comet Y4 ATLAS Breaks Up...Enter Comet F8 SWAN|date=2020-04-15|work=Universe Today|language=en-US|accessdate=2020-04-16}}</ref><br />
<br />
Kao i svi kometi, SWAN oslobađa zeleni rep jer se [[ugljik]] i [[cijanid]] unutar kometa ioniziraju kada se komet približava našoj zvijezdi domaćinu. Komet je bio vrlo difuzan, nema vidljivu jezgru i nije bio komet kojeg su mogli primijetiti neiskusni promatrači. Vjerojatno se raspao nakon perihela. <br />
<br />
== Orbita ==<br />
[[Centar malih planeta]] navodi orbitu kao povezanu sa <math>e<1</math>, <ref name="MPC">{{Citiranje weba|url=https://minorplanetcenter.net/mpec/K20/K20G94.html|title=MPEC 2020-G94 : COMET C/2020 F8 (SWAN)|work=minorplanetcenter.net|accessdate=2020-04-16}}</ref> S vrlo kratkim trodnevnim [[luk promatranja|promatračkim lukom]] JPL navodi komet kao hiperbolički s ekscentričnošću 1,1± 0,2, ali potreban je duži promatrački luk da bi se riješile nesigurnosti i znalo je li orbitalni period dug tisućama ili milijunima godina. <br />
<br />
Nagib staze mu iznosi 110°, a to znači da se giba u suprotnom smjeru od smjera kojim jezde planeti, ali i to da prilazi ravnini ekliptike skoro okomito. <br />
<br />
12. svibnja 2020. komet je prošao na udaljenosti oko 0,576 AJ od Zemlje. Sjaj mu se za tu prigodu prognozirao na m = 2,8. Oko 27. svibnja 2020. komet je došao do [[Apsida (astronomija)|perihela]] na 0.43 AJ od Sunca. <ref name="MPC">{{Citiranje weba|url=https://minorplanetcenter.net/mpec/K20/K20G94.html|title=MPEC 2020-G94 : COMET C/2020 F8 (SWAN)|work=minorplanetcenter.net|accessdate=2020-04-16}}</ref><br />
<br />
== Galerija ==<br />
[[Datoteka:SWAN_2-5-2020.jpg|središte|mini|C/2020 F8 (SWAN) (2.5. 2020.)]]<br />
<br />
== Izvori ==<br />
{{Izvori}}<br />
<br />
== Vanjske povrznice ==<br />
* [http://www.aerith.net/comet/catalog/2020F8/2020F8.html C/2020 F8 (SWAN)] – Seiichi Yoshida<br />
* [https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=C%2F2020%20F8 C/2020 F8 (SWAN)] – JPL<br />
* [http://aim-muenster.de/AiM-Project-Group/Some-Impressions/Comet-C/2020-F8-SWAN/ C/2020 F8 (SWAN)] – AiM-Project<br />
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[[Kategorija:Kometi]]</div>
WikiSysop