TOI-700 d

TOI-700 d
Artistic simulation of TOI-700 d, depicted here as a possible ocean planet. The actual appearance of the planet is not currently known.
Discovery[1]
Discovered byEmily Gilbert et al.
Discovery date3 January 2020
Transit
Orbital characteristics[2]
0.1633±0.0027 AU
Eccentricity0.042+0.045
−0.030
37.42396+0.00039
−0.00035 d
Inclination89.80°+0.12°
−0.10°
10°+120°
−140°
StarTOI-700
Physical characteristics
1.073+0.059
−0.054 R🜨[2]
Mass≙1.72+1.29
−0.63 ME[1]
TemperatureTeq: 268.8 K (−4.3 °C; 24.2 °F)[3]

TOI-700 d is a near-Earth-sized exoplanet, likely rocky, orbiting within the habitable zone of the red dwarf TOI-700, the outermost planet within the system. It is located roughly 101.4 light-years (31.1 pc) away from Earth in the constellation of Dorado. The exoplanet is the first Earth-sized exoplanet in the habitable zone discovered by the Transiting Exoplanet Survey Satellite (TESS).[4][5][6]

TOI-700 d orbits its star at a distance of 0.163 AU (24,400,000 km; 15,200,000 mi) from its host star with an orbital period of roughly 37.4 days and has a radius of around 1.19 times that of Earth. It has been estimated that the planet receives about 86% the energy that the Earth receives from the Sun.[7]

It was discovered in early January 2020 by the Transiting Exoplanet Survey Satellite (TESS).

  1. ^ a b Cite error: The named reference Gilbert et al. was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Gilbert2023 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Rodriguez et al. was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference NASA-20200106 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference NASA-20200106b was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SPC-20200106 was invoked but never defined (see the help page).
  7. ^ "[VIDEO] TOI 700d : une planète de la taille de la Terre découverte dans une "zone habitable"". midilibre.fr (in French). Retrieved 17 April 2020.