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TOI-4578 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-4578 b

Confirmed exoplanet · Super Earth

TOI-4578 b

Orbiting TOI-4578

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-4578 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Transit
Radius: 2.269743 R⊕
Mass: 5.77 M⊕
Orbit: 8.623926 days
Distance: 182.249 pc

Planet profile

Orbit and physical properties

Orbital period: 8.623926 days
Semi-major axis: Not reported by the NASA Exoplanet Archive
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 2.269743 Earth radii
Mass: 5.77 Earth masses
Mass provenance: M-R relationship
Density: 2.71 g/cm³
Equilibrium temperature: 842.42 K
Insolation: 119.0248 Earth flux

Host system

Star and system properties

Host star: TOI-4578
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,951.32 K
Stellar radius: 0.878735 R☉
Stellar mass: 1.077 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 182.249 parsecs
Right ascension: 12h16m50.63s
Declination: +75d08m24.85s

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 ↗

Visual archive

Gallery

One image from TOI-4578 b.

Generic super earth catalog artwork; not a direct image of TOI-4578 b — Apex Andromeda catalog artwork