Beta Pictoris c

Beta Pictoris c
Discovery
Discovered byLagrange et al.[1]
Discovery siteLa Silla Observatory
Discovery date19 August 2019[1]
Radial velocity method
Orbital characteristics[2]
2.680+0.016
−0.015 AU
Eccentricity0.314+0.024
−0.034
3.266+0.015
−0.012 yr
Inclination88.947°+0.083°
−0.091°
31.081°+0.060°
−0.048°
243.890°+2.201°
−3.326°
Semi-amplitude137.999+16.442
−15.079 m/s
StarBeta Pictoris
Physical characteristics
1.2±0.1 RJ[3]
Mass10.139+1.175
−1.031 MJ[2]
Temperature1250±50 K[3]

Beta Pictoris c (abbreviated as β Pic c) is the second exoplanet discovered orbiting the young star Beta Pictoris, located approximately 63 light-years away from Earth in the constellation of Pictor. Its mass is around nine times that of Jupiter, and it orbits at around 2.7 astronomical units (AU) from Beta Pictoris, about 3.5 times closer to its parent star than Beta Pictoris b.[1] It has an orbital period of 1,200 days (3.3 years).[1] The orbit of Beta Pictoris c is moderately eccentric, with an eccentricity of 0.24.[4][5]

This exoplanet is notable for having been detected by three different methods: initially radial velocity,[1] then direct imaging[3] and astrometry.[6]

  1. ^ a b c d e Cite error: The named reference Nature was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Feng2022 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Nowak2020 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Lagrange2020 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Young was invoked but never defined (see the help page).
  6. ^ Brandt, G. Mirek; Brandt, Timothy D.; Dupuy, Trent J.; Li, Yiting; Michalik, Daniel (2021). "Precise Dynamical Masses and Orbital Fits for β Pic b and β Pic C". The Astronomical Journal. 161 (4): 179. arXiv:2011.06215. Bibcode:2021AJ....161..179B. doi:10.3847/1538-3881/abdc2e. S2CID 226306610.