50000 Quaoar
50000 Quaoar Ditemukan oleh C. Trujillo M. E. Brown Situs penemuan Palomar Obs. Tanggal penemuan 6 Juni 2002 (50000) Quaoar Pelafalan [ a] Asal nama
Quaoar [ 2] (deity of the Tongva people ) 2002 LM60 Objek Trans-Neptunus [ 3] Epos 27 April 2019 (Hari Julian 2458600.5)Parameter ketidakpastian 3Rentang pengamatan 64.044 hari (23,376 hari) 25 Mei 1954 Aphelion 43.6916 AU Perihelion 41.9635 AU 43.6916 AU Eksentrisitas 0.0396 288.81 tahun (105,416 h ) 300.7086° 0° 0m 12.287s / hari Inklinasi 7.9881° 188.8372° 146.4064° satelit yang diketahui1 (Weywot ; D : 81± 11 km ) [ 4] Diameter rata-rata
1110± 5 km [ 5] 1074± 38 km[ 6] Jari-jari rata-rata
555± 2,5 km [ 5] Kepepatan 0,0897± 0,006[ 5] Massa (1,4± 0,1)× 1021 kg[ 6] [ 7] 0.12 Massa Eris [ 8] 1,99± 0,46 g/cm3 [ 5] 2,18+0,43 −0,36 g/cm3 [ 6] ≈ 0.3 m/s2 ≈ 1.83 m/s 17,6788 j[ 9] 0,109± 0,007[ 5] (cukup merah )B–V = 0,94± 0,01[ 10] V−R = 0,64± 0,01[ 10] 19.3[ 11] 2,82± 0,06[ 5] 2.4[ 3]
50000 Quaoar adalah objek trans-Neptunus biner dan kandidat planet kerdil yang mengorbit Matahari di sabuk Kuiper . Ia ditemukan pada tanggal 4 Juni 2002 oleh astronom Chad Trujillo dan Michael Brown di California Institute of Technology , dari gambar diperoleh Teleskop Oschin Samuel di Observatorium Palomar .
Catatan
^ Brown's website[ 12] gives a three-syllable pronunciation, , as an approximation of the Tongva pronunciation Templat:IPA-azc . However, his students pronounce it with two syllables, , reflecting the usual English spelling and pronunciation of the deity, Kwawar .[ 13]
Referensi
^ "50000 Quaoar (2002 LM60)" . Minor Planet Center . Diakses tanggal 30 November 2017 .
^ Schmadel, Lutz D. (2007). "(50000) Quaoar". Dictionary of Minor Planet Names – (50000) Quaoar . Springer Berlin Heidelberg . hlm. 895. doi :10.1007/978-3-540-29925-7_10041 . ISBN 978-3-540-00238-3 .
^ a b c "JPL Small-Body Database Browser: 50000 Quaoar (2002 LM60)" (2018-05-25 last obs.). Jet Propulsion Laboratory . Diakses tanggal 27 February 2018 .
^ Green, Daniel W. E. (22 February 2007). "Satellites of 2003 AZ_84, (50000), (55637), and (90482)" . International Astronomical Union Circular . Central Bureau for Astronomical Telegrams. hlm. 1. Bibcode :2007IAUC.8812....1B . Diarsipkan dari versi asli tanggal 19 July 2011.
^ a b c d e f Braga-Ribas, F.; Sicardy, B.; Ortiz, J. L.; Lellouch, E.; Tancredi, G.; Lecacheux, J.; et al. (August 2013). "The Size, Shape, Albedo, Density, and Atmospheric Limit of Transneptunian Object (50000) Quaoar from Multi-chord Stellar Occultations" . The Astrophysical Journal . 773 (1): 13. Bibcode :2013ApJ...773...26B . doi :10.1088/0004-637X/773/1/26 . Diakses tanggal 27 February 2018 .
^ a b c Fornasier, S.; Lellouch, E.; Müller, T.; Santos-Sanz, P.; Panuzzo, P.; Kiss, C.; et al. (July 2013). "TNOs are Cool: A survey of the trans-Neptunian region. VIII. Combined Herschel PACS and SPIRE observations of nine bright targets at 70-500 µ m" . Astronomy and Astrophysics . 555 : 22. arXiv :1305.0449v2 . Bibcode :2013A&A...555A..15F . doi :10.1051/0004-6361/201321329 . Diakses tanggal 27 February 2018 .
^ Fraser, Wesley C.; Batygin, Konstantin; Brown, Michael E.; Bouchez, Antonin (January 2013). "The mass, orbit, and tidal evolution of the Quaoar-Weywot system" . Icarus . 222 (1): 357–363. arXiv :1211.1016 . Bibcode :2013Icar..222..357F . doi :10.1016/j.icarus.2012.11.004 .
^ Fraser, Wesley C.; Brown, Michael E. (May 2010). "Quaoar: A Rock in the Kuiper Belt". The Astrophysical Journal . 714 (2): 1547–1550. arXiv :1003.5911 . Bibcode :2010ApJ...714.1547F . doi :10.1088/0004-637X/714/2/1547 .
^ "LCDB Data for (50000) Quaoar" . Asteroid Lightcurve Database (LCDB). Diarsipkan dari versi asli tanggal 2019-01-11. Diakses tanggal 30 November 2017 .
^ a b Tegler, Stephen C. (1 February 2007). "Kuiper Belt Object Magnitudes and Surface Colors" . Diarsipkan dari versi asli tanggal 2006-09-01. Diakses tanggal 27 February 2018 .
^ "AstDys (50000) Quaoar Ephemerides" . Department of Mathematics, University of Pisa, Italy. Diakses tanggal 2009-03-16 .
^ Frequently Asked Questions About Quaoar
^ E. L. Schaller, M. E. Brown, "Detection of Additional Members of the Haumea Collisional Family via Infrared Spectroscopy". AAS DPS conference, 13 Oct. 2008; also podcast: Dwarf Planet Haumea (Darin Ragozzine) at 3′18″
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