Cóiméad Halley

Cóiméad Halley
Ainmniú sealadach	1P/1982 U1, 1982i, 1P/1909 R1, 1909c, 1P/1835 P1, 1835 III, 1P/1758 Y1, 1759 I, 1P/1682 Q1, 1682, 1P/1607 S1, 1607, 1P/1531 P1, 1531, 1P/1456 K1, 1456, 1P/1378 S1, 1378, 1P/1301 R1, 1301, 1P/1222 R1, 1222, 1P/1145 G1, 1145, 1P/1066 G1, 1066, 1P/989 N1, 989, 1P/912 J1, 912, 1P/837 F1, 837, 1P/760 K1, 760, 1P/684 R1, 684, 1P/607 H1, 607, 1P/530 Q1, 530, 1P/451 L1, 451, 1P/374 E1, 374, 1P/295 J1, 295, 1P/218 H1, 218, 1P/141 F1, 141, 1P/66 B1, 66, 1P/-11 Q1, -11, 1P/-86 Q1, -86, 1P/-163 U1, -163, 1P/-239 K1, -239, 1986 III, 1910 II
Cineál	Halley-type comet (en) , cóiméad tréimhsiúil agus réad neas-Domhanda
Dáta fionnachtana	466 "RCh", 240 "RCh", 164 "RCh" agus 25 Nollaig 1758, an tSean-Ghréig
Eapainm	Edmond Halley
Réad tuismitheora	an Ghrian
Réad linbh	Eta Aquariids (en)
Aois	21 Feabhra 1968
Sonraí fithiseacha
	Féach ar an staid reatha
Apaipsis	35.28491 AU
Pearaipsis	0.57516 AU; (arg (ω): 112.21284)
Ais mhór a	17.930034311576 AU
Éalárnacht e	0.96792211692408
Tréimhse fhithiseach P	27,731.292256899 d
Meán-Aimhrialtacht M	274.81135 °
Claonadh i	162.19514629807 °
Fad an nóid éirithigh Ω	59.071987123101 °
Saintréithe fisiceacha agus réaltmhéadracha
Trastomhas	11 km
Dearbhmhéid	5.5
Mais	220 Tg
Meándlús	850 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.^[11]

Tagairtí

↑ URL tagartha: https://bbc.com/news/science-environment-11255168.
↑ URL tagartha: https://newscientist.com/article/mg20727774-400-ancient-greeks-spotted-halleys-comet/.
↑ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 “JPL Small-Body Database”. Dáta rochtana: 12 Samhain 2023. Earráid leis an lua: Invalid <ref> tag; name "Q4026990" defined multiple times with different content
↑ 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.
↑ ^5.0 ^5.1 ^5.2 “JPL Small-Body Database”. Dáta rochtana: 16 Deireadh Fómhair 2025.
↑ Philippe Lamy (2004). "The Sizes, Shapes, Albedos, and Colors of Cometary Nuclei" (as Béarla): 223-264. doi:10.2307/J.CTV1V7ZDQ5.22.
↑ “JPL Small-Body Database”. Dáta rochtana: 12 Samhain 2023.
↑ URL tagartha: http://www.springerlink.com/content/0r3801302547v3x8/.
↑ Hans Rickman (Lúnasa 1999). "Gas flow and dust acceleration in a cometary Knudsen layer" (as Béarla) (8-9): 935-949. doi:10.1016/S0032-0633(99)00008-2.
↑ Humberto Campins (2002). "Observational constraints on surface characteristics of comet nuclei" (as Béarla): 117–134.
↑ Hussey, Matt (2011). "Cóiméad Halley". Fréamh an Eolais. Coiscéim. p. 340.

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

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

[Q4026990-3] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 “JPL Small-Body Database”. Dáta rochtana: 12 Samhain 2023. Earráid leis an lua: Invalid <ref> tag; name "Q4026990" defined multiple times with different content

[Q19025604-4] 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.

[a03726022c1069e8259a9248a80342c93826a93a-5] 5.0 ^5.1 ^5.2 “JPL Small-Body Database”. Dáta rochtana: 16 Deireadh Fómhair 2025.

[4b0c56c516627811b838856700e3c6a6d7571a9a-6] Philippe Lamy (2004). "The Sizes, Shapes, Albedos, and Colors of Cometary Nuclei" (as Béarla): 223-264. doi:10.2307/J.CTV1V7ZDQ5.22.

[4d15a9723bdc0699f5f7a589d19f2c4e455382f8-7] “JPL Small-Body Database”. Dáta rochtana: 12 Samhain 2023.

[0206e02da6d86d26606502c33c2a96ecd38d799c-8] URL tagartha: http://www.springerlink.com/content/0r3801302547v3x8/.

[a99d46214614c34b5c848d7568af28679a58fb45-9] Hans Rickman (Lúnasa 1999). "Gas flow and dust acceleration in a cometary Knudsen layer" (as Béarla) (8-9): 935-949. doi:10.1016/S0032-0633(99)00008-2.

[29ea1e7f8fd0b3b92bbf01e24894217b965ff7d9-10] Humberto Campins (2002). "Observational constraints on surface characteristics of comet nuclei" (as Béarla): 117–134.

[FreamhanEolais-11] Hussey, Matt (2011). "Cóiméad Halley". Fréamh an Eolais. Coiscéim. p. 340.

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