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TOI-1803 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-1803 c

Confirmed exoplanet · Neptune Like

TOI-1803 c

Orbiting TOI-1803

Discovered in 2025 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-1803 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Transit
Radius: 4.29 R⊕
Mass: 8 M⊕
Orbit: 12.885779 days
Distance: 119.24 pc

Planet profile

Orbit and physical properties

Orbital period: 12.885779 days
Semi-major axis: 0.097 AU
Eccentricity: 0
Radius: 4.29 Earth radii
Mass: 8 Earth masses
Mass provenance: Mass
Density: 0.419035 g/cm³
Equilibrium temperature: 588 K
Insolation: 22 Earth flux

Host system

Star and system properties

Host star: TOI-1803
Stars in system: 1
Known planets in system: 2
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 4,687 K
Stellar radius: 0.715 R☉
Stellar mass: 0.756 M☉
Stellar metallicity: 0.014 dex
Stellar age: 1.4 Gyr
Distance: 119.24 parsecs
Right ascension: 11h52m11.07s
Declination: +35d10m18.48s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,025
Publication date: 2025-03
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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