Haumea

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Haumea
Haumea
Haumea
Panemon
Panemu Brown et al.; Ortiz et al. (ora ana sing resmi)
Tanggal ditemokaké 28 Desember 2004 (Brown et al.); Juli 2005 (Ortiz et al.)
Penamaan
Penamaan MPC (136108) Haumea
Nama alternatif 2003 EL61
Kategori
planet minor		 planèt cilik, plutoid, TNO (diilangaké saka cubewano)[1][2]
résonansi 12:7 orde kalima[3]
Epos 30 November 2008 (dina Julian 2454800,5)
Aphelion 7.710 Gm
51,544 SA
Perihelion 5.194 Gm
34,721 SA
Sumbu semi-mayor 6.452 Gm
43,132 SA
Eksentrisitas 0,195 01
Periode orbit 103 468 dina (283,28 taun)
Kecepatan orbit rata-rata 4,484 km/det
Anomali rata-rata 202,67°
Inklinasi 28,22°
Bujur node menaik 121,10°
Argumen perihelion 239,18°
Satelit 2
Ciri-ciri fisik
Dimensi ≈1.960 × 1.518 × 996 km (Keck)[5]
(≈1.436 km)
1.150 +250 km (Spitzer)[6]
Luas permukaan ≈2×107 km2
Massa (4,006 ± 0,040)×1021 kg[7]
Kepadatan rata-rata 2,6–3,3 g/cm³[5]
Gravitasi permukaan di khatulistiwa 0,44 m/s²
Kecepatan lepas 0,84 km/s
Hari sideris 0,163 146 ± 0,000 004 h
(3,915 5 ± 0,000 1 j)[8]
Albedo 0,7 ± 0,1[5]
0,84 +0.1[6]
Suhu <50 K[9]
Kelas spektrum ?
Magnitudo tampak 17,3 (oposisi)[10][11]
Magnitudo mutlak (H) 0,17[4]

Haumea (pocapan jroning Basa Inggris /haʊˈmeɪə/ how-MAY-ə), sacara resmi diarani (136108) Haumea lan sebutan sauntara (136108) 2003 EL61 iku planèt cilik ing sabuk Kuiper, sacara kasar watara sapratelu massa Pluto, ditemokaké déning tim Mike Brown ing Caltech ing Amérika Sarékat utawa J. L. Ortiz et al. saka Instituto de Astrofísica de Andalucía ing Observatorium Sierra Nevada ing Spanyol (isih arupa kontrovèrsi). Minor Planèt Center nélakaké grup Ortiz minangka panemu amarga dhèwèké sing pisanan ngumumaké objèk kasebut. Nalika tanggal 17 September 2008, Haumea diklasifikasikaké minangka planèt cilik déning IAU.

Jeneng [sunting]

Jeneng Haumea asalé saka salah diji jeneng dèwi ing mitologi Hawaii[12]

Rujukan [sunting]

  1. ^ "Minor Planet Electronic Circular 2009-A63 : Distant Minor Planets (2009 JAN. 29.0 TT)" (2006 provisional Cubewano listing). Minor Planet Center. 2009-01-13. http://www.cfa.harvard.edu/mpec/K09/K09A63.html. Retrieved 2009-02-03.
  2. ^ Marc W. Buie (2008-06-25). "Orbit Fit and Astrometric record for 136108". Southwest Research Institute (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/136108.html. Retrieved 2008-10-02.
  3. ^ D. Ragozzine; M. E. Brown (2007-09-04). "Candidate Members and Age Estimate of the Family of Kuiper Belt Object 2003 EL61". The Astronomical Journal 134 (6): 2160–2167. doi:10.1086/522334. http://adsabs.harvard.edu/abs/2007arXiv0709.0328R. Retrieved 2008-09-19.
  4. ^ a b "Jet Propulsion Laboratory Small-Body Database Browser: 136108 Haumea ((2003 EL61)". NASA's Jet Propulsion Laboratory. 2008-05-10 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=136108. Retrieved 2008-06-11.
  5. ^ a b c D. L. Rabinowitz, K. M. Barkume, M. E. Brown, H. G. Roe, M. Schwartz, S. W. Tourtellotte, C. A. Trujillo (2006). "Photometric Observations Constraining the Size, Shape, and Albedo of 2003 EL61, a Rapidly Rotating, Pluto-Sized Object in the Kuiper Belt" (preprint on arXiv). The Astrophysical Journal 639 (2): 1238–1251. doi:10.1086/499575.
  6. ^ a b John Stansberry, Will Grundy, Mike Brown, Dale Cruikshank, John Spencer, David Trilling, Jean-Luc Margot (2007-02-20). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". University of Arizona, Lowell Observatory, California Institute of Technology, NASA Ames Research Center, Southwest Research Institute, Cornell University. http://arxiv.org/abs/astro-ph/0702538v2. Retrieved 2008-07-27.
  7. ^ Ragozzine, D.; Brown, M.E. (2009). "Orbits and Masses of the Satellites of the Dwarf Planet Haumea = 2003 EL61". The Astronomical Journal. http://arxiv.org/abs/0903.4213.
  8. ^ Pedro Lacerda, David Jewitt and Nuno Peixinho (2008-04-02). "High-Precision Photometry of Extreme KBO 2003 EL61". The Astronomical Journal 135: 1749–1756. doi:10.1088/0004-6256/135/5/1749. http://www.iop.org/EJ/abstract/1538-3881/135/5/1749. Retrieved 2008-09-22.
  9. ^ Chadwick A. Trujillo, Michael E. Brown, Kristina Barkume, Emily Shaller, David L. Rabinowitz (February 2007). "The Surface of 2003 EL61 in the Near Infrared" (preprint). The Astrophysical Journal 655: 1172–1178. doi:10.1086/509861.
  10. ^ "AstDys (136108) Haumea Ephemerides". Department of Mathematics, University of Pisa, Italy. http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.3.0&n=Haumea. Retrieved 2009-03-19.
  11. ^ "HORIZONS Web-Interface". NASA Jet Propulsion Laboratory Solar System Dynamics. http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2003EL61. Retrieved 2008-07-02.
  12. ^ Robert D. Craig (2004). Handbook of Polynesian Mythology. ABC-CLIO. p. 128. ISBN 9781576078945. http://books.google.com/?id=LOZuirJWXvUC&pg=PA128&dq=haumea.

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