TRAPPIST-1g

TRAPPIST-1g
Penggambaran komputer atas TRAPPIST-1g. (Februari 2018)
Penemuan
Tanggal penemuan2017
Transit
Ciri-ciri orbit
Apastron0,04697 +0,0000031−0,000004 AU
Periastron0,04678 +0,0000034−0,000004 AU
0,04687692 ± 3,2 × 10−7[1] AU
Eksentrisitas0,00208 (± 0,00058)[1]
12,424305 (± 0,00000039)[1] h
Inklinasi89,721 (± 0,23)[2]
BintangTRAPPIST-1[3]
Ciri-ciri fisik
Jari-jari rata-rata
1,148 +0,032−0,033[1] R
Massa1,148 +0,098−0,095[1] M🜨
Massa jenis rata-rata
4,186 +0,187−0,182 g/cm3
0,871 +0,040−0,039[1] g
Suhu1.945 ± 27 K (1.671,8 ± 27,0 °C; 3.041,3 ± 48,6 °F) (kesetimbangan)[2]
Penggambaran komputer atas TRAPPIST-1g.

TRAPPIST-1g adalah sebuah planet ekstrasurya yang mengorbit di sekitar bintang katai ultradingin TRAPPIST-1 sekitar 40 tahun cahaya jauhnya di konstelasi Aquarius. Itu adalah salah satu dari empat eksoplanet baru yang ditemukan mengorbit di bintang ini dengan menggunakan pengamatan dari Spitzer Space Telescope.[4] exoplanet ini memiliki zona laik huni.[5]

Lihat juga

Referensi

  1. ^ a b c d e f Grimm, Simon L.; Demory, Brice-Olivier; Gillon, Michael; Dorn, Caroline; Agol, Eric; Burdanov, Artem; Delrez, Laetitia; Sestovic, Marko; Triaud, Amaury H.M.J.; Turbet, Martin; Bolmont, Emeline; Caldas, Anthony; de Wit, Julien; Jehin, Emmanuel; Leconte, Jeremy; Raymond, Sean N.; Van Grootel, Valerie; Burgasser, Adam J.; Carey, Sean; Fabrycky, Daniel; Heng, Kevin; Hernandez, David M.; Ingalls, James G.; Lederer, Susan; Selsis, Franck; Queloz, Didier (2018). "The nature of the TRAPPIST-1 exoplanets". Astronomy & Astrophysics. 613: A68. arXiv:1802.01377alt=Dapat diakses gratis. doi:10.1051/0004-6361/201732233. 
  2. ^ a b Delrez, Laetitia; Gillon, Michael; H.M.J, Amaury; Brice-Oliver Demory, Triaud; de Wit, Julien; Ingalls, James; Agol, Eric; Bolmont, Emeline; Burdanov, Artem; Burgasser, Adam J.; Carey, Sean J.; Jehin, Emmanuel; Leconte, Jeremy; Lederer, Susan; Queloz, Didier; Selsis, Franck; Grootel, Valerie Van (2018). "Early 2017 observations of TRAPPIST-1 with Spitzer". Monthly Notices of the Royal Astronomical Society. 475 (3): 3577–3597. arXiv:1801.02554alt=Dapat diakses gratis. doi:10.1093/mnras/sty051. 
  3. ^ Van Grootel, Valerie; Fernandes, Catarina S.; Gillon, Michaël; Jehin, Emmanuel; Scuflaire, Richard; et al. (2018). "Stellar parameters for TRAPPIST-1". The Astrophysical Journal. 853: 30. arXiv:1712.01911alt=Dapat diakses gratis. doi:10.3847/1538-4357/aaa023. 
  4. ^ "Temperate Earth-Sized Planets Found in Extraordinarily Rich Planetary System TRAPPIST-1". SpaceRef. 22 February 2017. Diakses tanggal 11 February 2017. [pranala nonaktif permanen]
  5. ^ "NASA telescope reveals largest batch of Earth-size, habitable-zone planets around single star". Exoplanet Exploration: Planets Beyond our Solar System (Siaran pers). Diakses tanggal 22 February 2017. 


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