Cerera

Cerera
	Dawn uz?emtais Cereras att?ls
Atkl??ana
Atkl?j?js/i	D?uzepe Piaci
Atkl??anas datums	1801 . gada 1. janv?r?
Apz?m?jumi
Maz?s plan?tas apz?m?jums	1 Ceres
Citi nosaukumi	A899 OF; 1943 XB
Mazo plan?tu kategorija	pundurplan?ta ; astero?du josla
Orbit?lie parametri
Af?lijs	2,9858 AU ; ( 446 669 320 km)
Perih?lijs	2,5468 AU ; ( 380 995 855 km)
Liel? pusass (r?diuss)	2,7654 AU ; ( 413 690 604 km)
Ekscentricit?te	0,079138
Apri??ojuma periods	4,60 yr ; 1679,67 d
Vid?jais apri??o?anas ?trums	17,882 km/s
Vid?j? anom?lija	113,410°
Sl?pums	10,587° l?dz ekliptikai
Uzleco?? mezgla garums	80,3932°
Pericentra arguments	72,5898°
Fiziskie parametri
Ekvatori?lais r?diuss	487,3 ± 1,8 km
Pol?rais r?diuss	454,7 ± 1,6 km
Virsmas laukums	2 850 000 km²
Masa	9,43 ± 0,07×10 20 kg ; 0,00015 Zemes masas
Vid?jais bl?vums	2,077 ± 0,036 g/cm³
Ekvatori?lais br?v?s kri?anas pa?trin?jums	0,27 m/s² (0,028 g )
2. kosmiskais ?trums	0,51 km/s
Sideriskais periods	0,3781 d ; 9,074170 h
Ass sl?pums	aptuveni 3°
Zieme?u pola rektascensija	19 h 24 min ; 291°
Zieme?u pola deklin?cija	59°
Albedo	0,090 ± 0,0033
Spektra tips	C
Redzamais spo?ums	no 6,64 l?dz 9,34
Absol?tais spo?ums	3,36 ± 0,02
Le??iskais diametrs	no 0,854" l?dz 0,339"

Cerera , ofici?li 1 Cerera , ir maz?k? identific?t? pundurplan?ta Saules sist?m? un liel?kais ?ermenis astero?du josl? . To 1801 . gada 1. janv?r? atkl?ja it??u astronoms D?uzepe Piaci un nod?v?ja dievietes Cereras v?rd?. Cerera it??u un romie?u mitolo?ij? ir zemes rado?o sp?ku, lab?bas aug?anas un nobrie?anas, k? ar? pazemes valst?bas dieviete. ^[14]

P?c atkl??anas Cerera tika uzskat?ta par plan?tu . Gadu v?l?k t? tika klasific?ta k? astero?ds , bet kop? 2006. gada - pundurplan?ta. T?s diametrs ir ap 952,4 km, ^[15] masa apm?ram 1/3 da?a no visas astero?du joslas masas. Cerera ir pirmais atkl?tais astero?ds un pagaid?m vien?gais zin?mais astero?du joslas objekts, kuru noapa?ojusi pa?a gravit?cija. ?erme?a redzamais spo?ums ir starp 6,7 ? 9,3, tas praktiski nav redzams ar neapbru?otu aci . P?t?jumi liecina, ka Cerera nav homog?ns objekts, ie?i veido kodolu, bet mantiju ? ?dens, ledus un da??du ie?u mais?jums. ^[16]

2015 . gada 6. mart? NASA starpplan?tu zonde Dawn ieg?ja orb?t? ap pundurplan?tu. Dawn uz?emtajos att?los redzams, ka Cereras virsmu izroboju?i triecienkr?teri . Zonde turpin?s atrasties orb?t? ap Cereru ar? p?c misijas beig?m. ^[17]

Nosaukums [ labot ?o sada?u | labot pirmkodu ]

1801 . gada 1. janv?r? D?uzepe Piaci ierosin?ja nosaukumu Ceres Ferdinandea ( it??u : Cerere Ferdinandea ), tom?r pundurplan?tu nosauca romie?u dievietes Cereras v?rd?. Cereras astronomiskais simbols ^[18] ir l?dz?gs astronomiskajam Veneras simbolam , kas ir sievie?u dzimuma simbols.

Atsauces [ labot ?o sada?u | labot pirmkodu ]

↑ Lutz Schmadel. Dictionary of minor planet names (5. izd.). Germany : Springer, 2003. 15. lpp. ISBN 978-3-540-00238-3 .
↑ Donald K. Yeomans. ≪1 Ceres≫ . JPL Small-Body Database Browser, 5. j?lijs, 2007. Arhiv?ts no ori?in?la, laiks: 2012-08-04 . Skat?ts: 2003-08-29 .
↑ ^3,0 ^3,1 ^3,2 ^3,3 ^3,4 ^3,5 Thomas, P. C.; Parker, J. Wm.; McFadden, L. A.; et al. (2005). "Differentiation of the asteroid Ceres as revealed by its shape". Nature 437 (7056): 224?226. Bibcode 2005Natur.437..224T . doi : 10.1038/nature03938 . PMID 16148926 .
↑ Carry, Benoit; et al. (November 2007). "Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres" (PDF). Astronomy & Astrophysics 478 (1): 235?244. arXiv : 0711.1152 . Bibcode 2008A&A...478..235C . doi : 10.1051/0004-6361:20078166 .
↑ ^5,0 ^5,1 Izskait?oti, zinot citus iepriek? nosauktos parametrus
↑ Williams, David R. (2004). Asteroid Fact Sheet . Arhiv?ts no ori?in?la 2010-01-18 . Atjaunin?ts: 2012-09-16 .
↑ Chamberlain, Matthew A.; Sykes, Mark V.; Esquerdo, Gilbert A. (2007). "Ceres lightcurve analysis ? Period determination". Icarus 188 (2): 451?456. Bibcode 2007Icar..188..451C . doi : 10.1016/j.icarus.2006.11.025 .
↑ Rivkin, A. S.; Volquardsen, E. L.; Clark, B. E. (2006). "The surface composition of Ceres:Discovery of carbonates and iron-rich clays" (PDF). Icarus 185 (2): 563?567. Bibcode 2006Icar..185..563R . doi : 10.1016/j.icarus.2006.08.022 . Atjaunin?ts: 2007-12-08 .
↑ Menzel, Donald H.; and Pasachoff, Jay M. A Field Guide to the Stars and Planets (2nd izd.). Boston, MA : Houghton Mifflin, 1983. 391. lpp. ISBN 978-0-395-34835-2 .
↑ APmag and AngSize generated with Horizons (Ephemeris: Observer Table: Quantities = 9,13,20,29) Veidne:WebCite
↑ Li, Jian-Yang; McFadden, Lucy A.; Parker, Joel Wm. (2006). "Photometric analysis of 1 Ceres and surface mapping from HST observations" . Icarus 182 (1): 143?160. Bibcode 2006Icar..182..143L . doi : 10.1016/j.icarus.2005.12.012 . Atjaunin?ts: 2007-12-08 .
↑ Angelo, Joseph A., Jr. Encyclopedia of Space and Astronomy . New York : Infobase, 2006. 122 . lpp. ISBN 0-8160-5330-8 .
↑ Saint-Pe, O.; Combes, N.; Rigaut F. (1993). "Ceres surface properties by high-resolution imaging from Earth". Icarus 105 (2): 271?281. Bibcode 1993Icar..105..271S . doi : 10.1006/icar.1993.1125 .
↑ Mitolo?ijas v?rdn?ca, Avots, 2004, ISBN 9984-757-36-6
↑ 1 Ceres
↑ Differentiation of the asteroid Ceres as revealed by its shape
↑ Dawn spacecraft gets an eyeful of dwarf planet Ceres
↑ JPL/NASA. ≪What is a Dwarf Planet?≫ . Jet Propulsion Laboratory , 2015-04-22 . Skat?ts: 2022-01-19 .

?r?j?s saites [ labot ?o sada?u | labot pirmkodu ]

Vikikr?tuv? par ?o t?mu ir pieejami multivides faili. Skat?t: Cerera .

?is ar astronomiju saist?tais raksts ir nepiln?gs . J?s varat dot savu ieguld?jumu Vikip?dij?, papildinot to .

[Schmadel-1] Lutz Schmadel. Dictionary of minor planet names (5. izd.). Germany : Springer, 2003. 15. lpp. ISBN 978-3-540-00238-3 .

[jpl_sbdb-2] Donald K. Yeomans. ≪1 Ceres≫ . JPL Small-Body Database Browser, 5. j?lijs, 2007. Arhiv?ts no ori?in?la, laiks: 2012-08-04 . Skat?ts: 2003-08-29 .

[Thomas2005-3] 3,0 ^3,1 ^3,2 ^3,3 ^3,4 ^3,5 Thomas, P. C.; Parker, J. Wm.; McFadden, L. A.; et al. (2005). "Differentiation of the asteroid Ceres as revealed by its shape". Nature 437 (7056): 224?226. Bibcode 2005Natur.437..224T . doi : 10.1038/nature03938 . PMID 16148926 .

[Carry2008-4] Carry, Benoit; et al. (November 2007). "Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres" (PDF). Astronomy & Astrophysics 478 (1): 235?244. arXiv : 0711.1152 . Bibcode 2008A&A...478..235C . doi : 10.1051/0004-6361:20078166 .

[fact2-5] 5,0 ^5,1 Izskait?oti, zinot citus iepriek? nosauktos parametrus

[NSSDC-6] Williams, David R. (2004). Asteroid Fact Sheet . Arhiv?ts no ori?in?la 2010-01-18 . Atjaunin?ts: 2012-09-16 .

[Chamberlain2007-7] Chamberlain, Matthew A.; Sykes, Mark V.; Esquerdo, Gilbert A. (2007). "Ceres lightcurve analysis ? Period determination". Icarus 188 (2): 451?456. Bibcode 2007Icar..188..451C . doi : 10.1016/j.icarus.2006.11.025 .

[Rivkin2006-8] Rivkin, A. S.; Volquardsen, E. L.; Clark, B. E. (2006). "The surface composition of Ceres:Discovery of carbonates and iron-rich clays" (PDF). Icarus 185 (2): 563?567. Bibcode 2006Icar..185..563R . doi : 10.1016/j.icarus.2006.08.022 . Atjaunin?ts: 2007-12-08 .

[Pasachoff1983-9] Menzel, Donald H.; and Pasachoff, Jay M. A Field Guide to the Stars and Planets (2nd izd.). Boston, MA : Houghton Mifflin, 1983. 391. lpp. ISBN 978-0-395-34835-2 .

[fact3-10] APmag and AngSize generated with Horizons (Ephemeris: Observer Table: Quantities = 9,13,20,29) Veidne:WebCite

[Li2006-11] Li, Jian-Yang; McFadden, Lucy A.; Parker, Joel Wm. (2006). "Photometric analysis of 1 Ceres and surface mapping from HST observations" . Icarus 182 (1): 143?160. Bibcode 2006Icar..182..143L . doi : 10.1016/j.icarus.2005.12.012 . Atjaunin?ts: 2007-12-08 .

[Angelo-12] Angelo, Joseph A., Jr. Encyclopedia of Space and Astronomy . New York : Infobase, 2006. 122 . lpp. ISBN 0-8160-5330-8 .

[Saint-Pe1993-13] Saint-Pe, O.; Combes, N.; Rigaut F. (1993). "Ceres surface properties by high-resolution imaging from Earth". Icarus 105 (2): 271?281. Bibcode 1993Icar..105..271S . doi : 10.1006/icar.1993.1125 .

[14] Mitolo?ijas v?rdn?ca, Avots, 2004, ISBN 9984-757-36-6

[15] 1 Ceres

[16] Differentiation of the asteroid Ceres as revealed by its shape

[17] Dawn spacecraft gets an eyeful of dwarf planet Ceres

[18] JPL/NASA. ≪What is a Dwarf Planet?≫ . Jet Propulsion Laboratory , 2015-04-22 . Skat?ts: 2022-01-19 .

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