Upsilon Andromedae b
Ilustrasi dari Upsilon Andromedae b bersama bintang induknya. | |
| Penemuan | |
|---|---|
| Ditemukan oleh | Marcy et al. |
| Situs penemuan | California and Carnegie Planet Search |
| Tanggal penemuan | 23 Juni 1996 |
| Kecepatan radial | |
| Ciri-ciri orbit | |
| Apastron | ~9.11 Gm |
| Periastron | ~8.22 Gm |
| ~8.91 Gm | |
| Eksentrisitas | 0.022±0.007[1] |
| 4.62±0.23[1] h 0.01328 t ~116.4 j | |
| Inklinasi | 24±4[2] |
| 2,450,034.053 ± 0.328[3] | |
| 44.106 ± 25.561[3] | |
| Semiamplitudo | 70.51 ± 0.45[1] |
| Bintang | Upsilon Andromedae A |
| Ciri-ciri fisik | |
| Massa | 1,70+0,33 −0,24[2] MJ |
Upsilon Andromedae b (υ Andromedae b, disingkat Upsilon And b, υ And b), secara resmi bernama Saffar /ˈsæfɑːr/, adalah sebuah planet ekstrasurya yang berjarak sekitar 44 tahun cahaya dari Matahari yang terletak di konstelasi Andromeda. Planet tersebut mengorbit sebuah bintang serupa matahari, Upsilon Andromedae A, setiap lima hari sekali. Ditemukan pada Juni 1996 oleh Geoffrey Marcy dan R. Paul Butler, planet ini merupakan salah satu planet berjenis Jupiter panas pertama yang ditemukan.
Lihat juga
Referensi
- ^ a b c Ligi, R.; et al. (2012). "A new interferometric study of four exoplanet host stars : θ Cygni, 14 Andromedae, υ Andromedae and 42 Draconis". Astronomy & Astrophysics. 545: A5. arXiv:1208.3895. Bibcode:2012A&A...545A...5L. doi:10.1051/0004-6361/201219467.
- ^ a b Pizkorz, D.; et al. (August 2017). "Detection of Water Vapor in the Thermal Spectrum of the Non-transiting Hot Jupiter Upsilon Andromedae b". The Astronomical Journal. 154 (2): 78. arXiv:1707.01534. Bibcode:2017AJ....154...78P. doi:10.3847/1538-3881/aa7dd8. Pemeliharaan CS1: DOI bebas tanpa ditandai (link)
- ^ a b McArthur, Barbara E.; et al. (2010). "New Observational Constraints on the υ Andromedae System with Data from the Hubble Space Telescope and Hobby Eberly Telescope" (PDF). The Astrophysical Journal. 715 (2): 1203. Bibcode:2010ApJ...715.1203M. doi:10.1088/0004-637X/715/2/1203.
Pranala luar
- "A Triple-Planet System Orbiting Ups Andromedae". San Francisco State University. Lick Observatory. Diarsipkan dari asli tanggal 2012-04-24. Diakses tanggal 2008-06-23.
- "Mystery Solved: How The Orbits Of Extrasolar Planets Became So Eccentric". SpaceDaily. 2005-04-14. Diakses tanggal 2008-06-23.
- "NASA's Spitzer Sees Day and Night on Exotic World". NASA. Spitzer Space Telescope. 2006-10-12. Diarsipkan dari asli tanggal October 22, 2007. Diakses tanggal 2008-06-23.
- "Upsilon Andromedae". The Internet Encyclopedia of Science. Diakses tanggal 2008-06-23.
- "Upsilon Andromedae". The Planet Project. Diarsipkan dari asli tanggal 2008-05-18. Diakses tanggal 2008-06-23.
- "Upsilon Andromedae 2". SolStation. Diakses tanggal 2008-06-23.
- "The Upsilon Andromedae Planetary System". Harvard-Smithsonian Center for Astrophysics. Diakses tanggal 2008-06-23.
Koordinat:
01h 36m 47.8s, +41° 24′ 20″
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