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TOI-209 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-209 b

Confirmed exoplanet · Super Earth

TOI-209 b

Orbiting TOI-209

Discovered in 2026 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of TOI-209 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Transit
Radius: 2.394721 R⊕
Mass: 6.32 M⊕
Orbit: 4.379436 days
Distance: 113.387 pc

Planet profile

Orbit and physical properties

Orbital period: 4.379436 days
Semi-major axis: Not reported by the NASA Exoplanet Archive
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 2.394721 Earth radii
Mass: 6.32 Earth masses
Mass provenance: M-R relationship
Density: 2.53 g/cm³
Equilibrium temperature: 845.78 K
Insolation: 120.936 Earth flux

Host system

Star and system properties

Host star: TOI-209
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 4,806.66 K
Stellar radius: 0.742779 R☉
Stellar mass: 0.81 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 113.387 parsecs
Right ascension: 01h17m34.60s
Declination: -66d54m11.04s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,026
Publication date: 2026-05
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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