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LHS 1903 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/LHS 1903 b

Confirmed exoplanet · Terrestrial

LHS 1903 b

Orbiting LHS 1903

Discovered in 2026 using Transit. 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 LHS 1903 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Transit
Radius: 1.382 R⊕
Mass: 3.28 M⊕
Orbit: 2.15551 days
Distance: 35.6917 pc

Planet profile

Orbit and physical properties

Orbital period: 2.15551 days
Semi-major axis: 0.02656 AU
Eccentricity: 0.015
Radius: 1.382 Earth radii
Mass: 3.28 Earth masses
Mass provenance: Mass
Density: 6.82 g/cm³
Equilibrium temperature: 796 K
Insolation: 66.66 Earth flux

Host system

Star and system properties

Host star: LHS 1903
Stars in system: 1
Known planets in system: 4
Spectral type: M
Stellar temperature: 3,664 K
Stellar radius: 0.539 R☉
Stellar mass: 0.538 M☉
Stellar metallicity: -0.11 dex
Stellar age: 7.08 Gyr
Distance: 35.6917 parsecs
Right ascension: 07h11m27.80s
Declination: +48d19m40.56s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,026
Publication date: 2026-02
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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