Terrestrial planet · LHS 475

LHS 475 b

ExoplanetsDiscovered 2023

Scientific overview

LHS 475 b is a terrestrial planet orbiting LHS 475, completing an orbit every 2 days, about 41 light-years from Earth. It was discovered in 2023 using the transit method.

Host star

LHS 475

Spectral type

M3.5 V

Temperature

3,300 K

Mass

0.262 M☉

Discovery and detection

Detection method

Transit Method

Discovery year

2023

Discovered at

TESS

Knowledge connections

OrbitsLHS 475
Discovered by methodTransit Method
Discovered by missionTESS
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Terrestrial planet
Host star: LHS 475
Discovery method: Transit Method
Discovery year: 2023
Orbital period: 2.0291 d
Semi-major axis: 0.0204 AU
Eccentricity: 0
Radius: 0.99 R⊕
Mass: 0.94 M⊕
Density: 5.34 g/cm³ · derived
Equilibrium temp.: 586 K
Insolation: 20.8 S⊕
Distance: 41 ly

Density is derived from the archive mass and radius via ρ = M / (4⁄3·π·r³); all other values are catalogued measurements.

Derived values

Computed from source-backed inputs via standard formulae — not observations. Every input and constant is traced below.

Bulk density5.34 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 0.94 M⊕ · NASA
- radiusEarth = 0.99 R⊕ · NASA
Assumptions: M⊕ = 5.972e+24 kg, R⊕ = 6371000 m (IAU 2015 B3 nominal); Assumes a uniform sphere.
Limitations: Withheld above 30 g/cm³ (inconsistent mass/radius inputs).; Archive mass/radius carry no propagated uncertainty here.
Uncertainty: not propagated (inputs carry no catalogued uncertainty)
Computed as of 2026-06-29.

Quality & authority

Partial

Unreviewed

Description: Complete
Source coverage: Partial
Relationship coverage: Complete
Review coverage: None
Citation coverage: None
Image coverage: Not applicable

Data from the NASA Exoplanet Archive. See source quality.