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TOI-421 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-421 b

Confirmed exoplanet · Neptune Like

TOI-421 b

Orbiting TOI-421

Discovered in 2020 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of TOI-421 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,020
Method: Transit
Radius: 2.64 R⊕
Mass: 6.7 M⊕
Orbit: 5.197576 days
Distance: 74.7969 pc

Planet profile

Orbit and physical properties

Orbital period: 5.197576 days
Semi-major axis: 0.0554 AU
Eccentricity: 0.13
Radius: 2.64 Earth radii
Mass: 6.7 Earth masses
Mass provenance: Mass
Density: 2.040038 g/cm³
Equilibrium temperature: 922 K
Insolation: 154.57 Earth flux

Host system

Star and system properties

Host star: TOI-421
Stars in system: 2
Known planets in system: 2
Spectral type: G9 V
Stellar temperature: 5,291 K
Stellar radius: 0.866 R☉
Stellar mass: 0.833 M☉
Stellar metallicity: -0.044 dex
Stellar age: 10.9 Gyr
Distance: 74.7969 parsecs
Right ascension: 05h27m24.79s
Declination: -14d16m36.27s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,020
Publication date: 2020-09
Discovery locale: Space
Facility: Transiting Exoplanet Survey Satellite (TESS)
Telescope: 0.1 m TESS Telescope
Instrument: TESS CCD Array
NASA Exoplanet Archive: Open composite record ↗

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