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Upsilon Andromedae b

Upsilon Andromedae b
Ilustrasi dari Upsilon Andromedae b bersama bintang induknya.
Penemuan
Ditemukan olehMarcy et al.
Situs penemuanCalifornia and Carnegie
Planet Search
 United States
Tanggal penemuan23 Juni 1996
Kecepatan radial
Ciri-ciri orbit
Apastron~9.11 Gm
Periastron~8.22 Gm
~8.91 Gm
Eksentrisitas0.022±0.007[1]
4.62±0.23[1] h
0.01328 t
~116.4 j
Inklinasi24±4[2]
2,450,034.053 ± 0.328[3]
44.106 ± 25.561[3]
Semiamplitudo70.51 ± 0.45[1]
BintangUpsilon Andromedae A
Ciri-ciri fisik
Massa1,70+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

  1. ^ 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 alt=Dapat diakses gratis. Bibcode:2012A&A...545A...5L. doi:10.1051/0004-6361/201219467. 
  2. ^ 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 alt=Dapat diakses gratis. Bibcode:2017AJ....154...78P. doi:10.3847/1538-3881/aa7dd8. 
  3. ^ 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

Koordinat: Peta langit 01h 36m 47.8s, +41° 24′ 20″


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