Makemake (planet katai)
| Makemake | |||
 Makemake dilihat oleh teleskop luar angkasa Hubble | |||
Penemuan | |||
|---|---|---|---|
| Penemu | Michael E. Brown, Chad Trujillo, David Rabinowitz | ||
| Tanggal ditemukan | 31 Maret 2005 | ||
Penamaan | |||
| Penamaan MPC | (136472) Makemake | ||
| Nama alternatif | 2005 FY9 | ||
| Kategori planet minor | planet katai, plutoid, TNO (cubewano)[1] | ||
| Epos 28 Januari 1955 (hari Julian 2 435 135,5) | |||
| Aphelion | 7.939,7 Gm (53,074 SA) | ||
| Perihelion | 5.760,8 Gm (38,509 SA) | ||
| Sumbu semi-mayor | 6.850,3 Gm (45,791 SA) | ||
| Eksentrisitas | 0,159 | ||
| Periode orbit | 113,183 hari (309,88 tahun) | ||
| Kecepatan orbit rata-rata | 4,419 km/det | ||
| Anomali rata-rata | 85,13° | ||
| Inklinasi | 28,96° | ||
| Bujur node menaik | 79,382° | ||
| Argumen perihelion | 298,41° | ||
Elemen orbit yang seharusnya | |||
Ciri-ciri fisik | |||
| Dimensi | 1.300–1.900 km | ||
| Jari-jari rata-rata | 750+200 km[4] | ||
| Luas permukaan | ~7.000.000 km² | ||
| Volume | ~1,8 × 109 km³ | ||
| Massa | ~4 × 1021 kg | ||
| Massa jenis rata-rata | ~2 g/cm³ (asumsi) | ||
| Gravitasi permukaan di khatulistiwa | ~0,47 m/s² | ||
| Kecepatan lepas | ~0,84 km/s | ||
| Hari sideris | tak diketahui | ||
| Kemiringan sumbu | tak diketahui | ||
| Albedo | 78,2+10,3 (geometrik)[4] | ||
| Suhu | 30–35 K [d](asumsi albedo yang sama) | ||
| Magnitudo tampak | 16,7 (oposisi)[5][6] | ||
| Magnitudo mutlak (H) | -0,48[3] | ||
Makemake
Makemake (pengucapan bahasa Inggris: [ˌmɑːkiːˈmɑːkiː], atau dalam Rapanui [ˈmakeˈmake] [7]), secara resmi disebut (136472) Makemake, adalah planet katai di Tata Surya yang terletak di sabuk Kuiper. Diameter planet katai ini kira-kira sekitar tiga per empat Pluto.[8] Makemake tidak memiliki satelit. Rata-rata suhunya yang sangat rendah (sekitar 30 K) menunjukkan bahwa lapisan Makemake terdiri dari metana, etana dan kemungkinan es nitrogen.[8]
Nama
Nama Makemake berasal dari nama dewa pencipta dan kesuburan di Pulau Paskah.[9]
Pranala luar
- MPEC listing for Makemake
- AstDys orbital elements
- Orbital simulation from JPL (Java) / Ephemeris
- Press release from WHT and TNG on Makemake's similarity to Pluto.
- Makemake chart and Orbit Viewer
- Precovery image with the 1.06 m Kleť Observatory telescope on 2003 April 20
- Makemake of the Outer Solar System APOD July 15, 2008
- Simulation of Makemake (2005 FY9)'s orbit
Catatan kaki
- ^ "MPEC 2009-P26 :Distant Minor Planets (2009 AUG. 17.0 TT)". IAU Minor Planet Center. 2009-08-07. Diakses 2009-08-28.
- ^ Marc W. Buie (2008-04-05). "Orbit Fit and Astrometric record for 136472". SwRI (Space Science Department). Diakses 2008-07-13.
- ^ a b "JPL Small-Body Database Browser: 136472 (2005 FY9)". NASA Jet Propulsion Laboratory. 2010-01-26. Diakses 2008-06-11. Text " last obs" ignored (help)
- ^ a b J. Stansberry, W. Grundy, M. Brown, et al. (February 2007). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". The Solar System beyond Neptune (University of Arizona Press). .
|accessdate=requires|url=(help) - ^ "AstDys (136472) Makemake Ephemerides". Department of Mathematics, University of Pisa, Italy. Diakses 2009-03-19.
- ^ "Asteroid 136472 Makemake (2005 FY9)". HORIZONS Web-Interface. JPL Solar System Dynamics. Diakses 2008-07-01.
- ^ Robert D. Craig (2004). Handbook of Polynesian Mythology. ABC-CLIO. hlm. 63. ISBN 1576078949. Diakses 2008-07-14.
- ^ a b Michael E. Brown (2006). "The discovery of 2003 UB313 Eris, the 10th planet largest known dwarf planet". California Institute of Technology. Diakses 2008-07-14.
- ^ "Dwarf Planets and their Systems". Working Group for Planetary System Nomenclature (WGPSN). U.S. Geological Survey. 2008-11-07. Diakses 2008-07-13.
| |||||||||||||||||
Kategori: |
id.wikipedia.org, andrafarm.com, wiki.kurikulum.org, dsb.