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TOI-444 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-444 b

Confirmed exoplanet · Neptune Like

TOI-444 b

Orbiting TOI-444

Discovered in 2023 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-444 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,023
Method: Transit
Radius: 2.77 R⊕
Mass: 8.1 M⊕
Orbit: 17.9636 days
Distance: 57.3973 pc

Planet profile

Orbit and physical properties

Orbital period: 17.9636 days
Semi-major axis: 0.133 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 2.77 Earth radii
Mass: 8.1 Earth masses
Mass provenance: M-R relationship
Density: 2.09 g/cm³
Equilibrium temperature: 609 K
Insolation: 23.4694 Earth flux

Host system

Star and system properties

Host star: TOI-444
Stars in system: 1
Known planets in system: 1
Spectral type: K1/2 V
Stellar temperature: 5,225 K
Stellar radius: 0.779 R☉
Stellar mass: 0.96 M☉
Stellar metallicity: 0.08 dex
Stellar age: 0.57 Gyr
Distance: 57.3973 parsecs
Right ascension: 04h16m44.16s
Declination: -26d45m59.07s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,023
Publication date: 2023-03
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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