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TOI-771 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-771 c

Confirmed exoplanet · Terrestrial

TOI-771 c

Orbiting TOI-771

Discovered in 2025 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic terrestrial catalog artwork; not a direct image of TOI-771 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Radial Velocity
Radius: 1.5 R⊕
Mass: 2.87 M⊕
Orbit: 7.61 days
Distance: 25.2788 pc

Planet profile

Orbit and physical properties

Orbital period: 7.61 days
Semi-major axis: 0.046 AU
Eccentricity: 0.065
Radius: 1.5 Earth radii
Mass: 2.87 Earth masses
Mass provenance: Msini
Density: 4.67 g/cm³
Equilibrium temperature: 365 K
Insolation: 3 Earth flux

Host system

Star and system properties

Host star: TOI-771
Stars in system: 1
Known planets in system: 2
Spectral type: M3
Stellar temperature: 3,370 K
Stellar radius: 0.232 R☉
Stellar mass: 0.22 M☉
Stellar metallicity: -0.13 dex
Stellar age: 6.7 Gyr
Distance: 25.2788 parsecs
Right ascension: 10h56m27.33s
Declination: -72d59m06.62s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,025
Publication date: 2025-06
Discovery locale: Ground
Facility: Paranal Observatory
Telescope: 8.2 m ESO VLT UT3 Melipal Telescope
Instrument: ESPRESSO
NASA Exoplanet Archive: Open composite record ↗

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