Gas giant · mu Leo

mu Leo b

ExoplanetsDiscovered 2014

Scientific overview

mu Leo b is a gas giant orbiting mu Leo, completing an orbit every 358 days, about 106 light-years from Earth. It was discovered in 2014 using the radial velocity method.

Host star

Rasalas

Spectral type

K2 III

Temperature

4,538 K

Mass

1.5 M☉

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2014

Knowledge connections

OrbitsRasalas
Discovered by methodRadial Velocity Method
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: Rasalas
Discovery method: Radial Velocity Method
Discovery year: 2014
Orbital period: 357.8 d
Semi-major axis: 1.1 AU
Eccentricity: 0.09
Radius: 13.3 R⊕
Mass: 762.8 M⊕
Density: 1.79 g/cm³ · derived
Equilibrium temp.: 704 K
Insolation: 51.79 S⊕
Distance: 106 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 density1.79 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 762.8 M⊕ · NASA
- radiusEarth = 13.3 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.