Cóiméad Halley

Cóiméad Halley
Cineál	Halley-type comets (en)
Dáta fionnachtana	466 "RCh", 240 "RCh" agus 164 "RCh"
Eapainm	Edmond Halley
Réad tuismitheora	An Ghrian
Aois	JDT2449400.5
Sonraí fithiseach
	Féach ar an staid reatha
Apaipsis	35.08231 AU
Pearaipsis	0.58598 AU; (arg (ω): 111.33249)
Ais mhór a	17.8341 AU
Éalárnacht e	0.96714
Tréimhse fhithiseach P	75.31589 a
Meán-Aimhrialtacht M	38.38426 °
Claonadh i	162.26269 °
Fad an nóid éirithigh Ω	58.42008 °
Dátaí pearaipsise	5 Feabhra 1986; 28 Iúil 2061
Saintréithe fisiceacha agus réaltmhéadracha
Trastomhas	11 km
Mais	220 Tg
Meándlús	600 kg/m³
Ailbéideacht	0.04 (ailbéideacht gheoiméadrach)
Catalóga réalteolaíochta
Aitheantóir JPL	1000036

Cóiméad clúiteach a thagann gar don Domhan gach 77 bliain nó mar sin, an uair dheireanach i 1985-1986.

Teilgeadh 5 spásárthach, dhá cheann ón Rúis, dhá cheann ón tSeapáin is ceann amháin ón ESA, chun é a iniúchadh go géar is cáithníní uaidh a thástáil.

Fuarthas gur hidrigin, carbón, nítrigin is ocsaigin na príomhdhúile ann, cosúil le neacha orgánacha ar domhan.

Tá sé curtha i gcás ag eolaithe áirithe go mb'fhéidir gur chuir imbhuailtí idir cóiméid mar seo agus an domhan go luath ina shaol tús leis an mbeatha ar domhan trí na dúile seo a thabhairt anseo.

Tagairtí[cuir in eagar | athraigh foinse]

↑ URL tagartha: https://bbc.com/news/science-environment-11255168.
↑ URL tagartha: https://newscientist.com/article/mg20727774-400-ancient-greeks-spotted-halleys-comet/.
↑ Ráite i: A Short History of Astronomy. Údar: Arthur Berry. Foilsitheoir: John Murray. Teanga an tsaothair nó an ainm: Béarla na Breataine. Dáta foilsithe: 1898.
↑ ^4.0 ^4.1 ^4.2 URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.
↑ URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.
↑ URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.
↑ URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.
↑ URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.
↑ URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.
↑ Ráite i: The Sizes, Shapes, Albedos, and Colors of Cometary Nuclei. Údar: Philippe Lamy. Leathanach: 223-264. DOI: 10.2307/J.CTV1V7ZDQ5.22. Teanga an tsaothair nó an ainm: an Béarla. Dáta foilsithe: 2004.
↑ URL tagartha: http://www.springerlink.com/content/0r3801302547v3x8/.
↑ URL tagartha: https://dx.doi.org/10.1016%2F0019-1035%2889%2990021-3.
↑ Humberto Campins (2002). "Observational constraints on surface characteristics of comet nuclei" (as an Béarla): 117–134.

[1] URL tagartha: https://bbc.com/news/science-environment-11255168.

[2] URL tagartha: https://newscientist.com/article/mg20727774-400-ancient-greeks-spotted-halleys-comet/.

[Q19025604-3] Ráite i: A Short History of Astronomy. Údar: Arthur Berry. Foilsitheoir: John Murray. Teanga an tsaothair nó an ainm: Béarla na Breataine. Dáta foilsithe: 1898.

[1b73413295d2b75b3c3468abb99a2a69ceac4f12-4] 4.0 ^4.1 ^4.2 URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.

[5] URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.

[6] URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.

[7] URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.

[8] URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.

[9] URL tagartha: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?des=1P.

[4b0c56c516627811b838856700e3c6a6d7571a9a-10] Ráite i: The Sizes, Shapes, Albedos, and Colors of Cometary Nuclei. Údar: Philippe Lamy. Leathanach: 223-264. DOI: 10.2307/J.CTV1V7ZDQ5.22. Teanga an tsaothair nó an ainm: an Béarla. Dáta foilsithe: 2004.

[0206e02da6d86d26606502c33c2a96ecd38d799c-11] URL tagartha: http://www.springerlink.com/content/0r3801302547v3x8/.

[7179ecd01429a2d92136d9e468c0b7fa8eed888d-12] URL tagartha: https://dx.doi.org/10.1016%2F0019-1035%2889%2990021-3.

[29ea1e7f8fd0b3b92bbf01e24894217b965ff7d9-13] Humberto Campins (2002). "Observational constraints on surface characteristics of comet nuclei" (as an Béarla): 117–134.

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