Haumea
planit katé ing Tåtå Suryå
Haumea (simbol: ;[12] pocapan jroning basa Inggris /haʊˈmeɪə/ how-MAY-ə), kanthi resmi diarani (136108) Haumea lan sebutan sauntara (136108) 2003 EL61 iku planit cilik ing sabuk Kuiper, kanthi kasar watara sapratelu massa Pluto, tinemu déning tim Mike Brown ing Caltech ing Amérikah Sarékat utawa J. L. Ortiz et al. saka Instituto de Astrofísica de Andalucía ing Observatorium Sierra Nevada ing Spanyol (isih wujud kontrovèrsi). Minor Planit Center nélakaké grup Ortiz minangka panemu amarga dhèwèké sing pisanan mbiwara objèk mau. Nalika tanggal 17 September 2008, Haumea diklasifikasikaké minangka planit cilik déning IAU.
![]() Haumea |
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Panemon
| |
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Panemu | Brown et al.; Ortiz et al. (ora ana sing resmi) |
Tanggal ditemokaké | 28 Dhésèmber 2004 (Brown et al.); Juli 2005 (Ortiz et al.) |
Penamaan
| |
Penamaan MPC | (136108) Haumea |
Nama alternatif | 2003 EL61 |
Kategori planet minor |
planit 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 Gm51,544 SA |
Perihelion | 5.194 Gm34,721 SA |
Sumbu semi-mayor | 6.452 Gm43,132 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] |
Jeneng
Jeneng Haumea asalé saka salah diji jeneng dèwi ing mitologi Hawaii[13]
Rujukan
- ↑ "Minor Planet Electronic Circular 2009-A63 : Distant Minor Planets (2009 JAN. 29.0 TT)". Minor Planet Center. 2009-01-13. Dibukak ing 2009-02-03.
- ↑ Marc W. Buie (2008-06-25). "Orbit Fit and Astrometric record for 136108". Southwest Research Institute (Space Science Department). Dibukak ing 2008-10-02.
- ↑
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. Dibukak ing 2008-09-19.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ↑ a b "Jet Propulsion Laboratory Small-Body Database Browser: 136108 Haumea (2003 EL61)". NASA's Jet Propulsion Laboratory. 2008-05-10. Dibukak ing 2008-06-11.
- ↑ 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). The Astrophysical Journal. 639 (2): 1238–1251. doi:10.1086/499575.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ↑ 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. Dibukak ing 2008-07-27.
{{cite web}}
: CS1 maint: multiple names: authors list (link) - ↑ Ragozzine, D.; Brown, M.E. (2009). "Orbits and Masses of the Satellites of the Dwarf Planet Haumea = 2003 EL61". The Astronomical Journal.
- ↑ 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. Dibukak ing 2008-09-22.
- ↑
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.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ↑ "AstDys (136108) Haumea Ephemerides". Department of Mathematics, University of Pisa, Italy. Dibukak ing 2009-03-19.
- ↑
"HORIZONS Web-Interface". NASA Jet Propulsion Laboratory Solar System Dynamics. Dibukak ing 2008-07-02.
{{cite web}}
: External link in
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- ↑ JPL/NASA (2015-04-22). "What is a Dwarf Planet?". Jet Propulsion Laboratory. Dibukak ing 2022-01-19.
- ↑ Robert D. Craig (2004). Handbook of Polynesian Mythology. ABC-CLIO. kc. 128. ISBN 9781576078945.
Pranala njaba
- NASA visualization of the orbit
- Updated data
- Space.com story: Large new world discovered beyond Neptune
- New Scientist story: New world found in outer solar system
- BBC story: Distant object found orbiting Sun
- Astronomers Discover "10th Planet"-Sky & Telescope article describing the discovery of (136108) 2003 EL61 and 136199 Eris.
- Michael Brown's webpage
- New Scientist story: Distant solar system body may be cigar-shaped
- BBC story: Record spin rate for cosmic body
- news @ nature.com story: Cosmic 'cigar' spins at astonishing pace; Pluto's neighbour has a very unexpected shape, September 9, 2005.
- New York Times story: "One find, two astronomers", September 13, 2005.
- S.C. Tegler, W. Grundy, W. Romanishin, G. Consolmagno, K. Mogren, F. Vilas: Optical Spectroscopy of the Large Kuiper Belt Objects 136472 (2005 FY9) and 136108 (2003 EL61). Preprint
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