Gas giant · mu2 Sco

mu2 Sco b

ExoplanetsDiscovered 2022

Scientific overview

mu2 Sco b is a gas giant orbiting mu2 Sco. It was discovered in 2022 using the direct imaging.

Host star

Spectral type

B2 IV

Temperature

21,700 K

Mass

9.1 M☉

Discovery and detection

Detection method

Discovery year

2022

Very Large Telescope (VLT)

Knowledge connections

Orbitsmu2 Sco
Discovered by methodDirect Imaging
Discovered atVery Large Telescope (VLT)
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: mu2 Sco
Discovery method: Direct Imaging
Discovery year: 2022
Semi-major axis: 242.4 AU
Eccentricity: 0.56
Radius: 12.3 R⊕
Mass: 4576.73 M⊕
Density: 13.56 g/cm³ · derived
Equilibrium temp.: 159 K
Insolation: 0.11 S⊕

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 density13.56 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 4576.73 M⊕ · NASA
- radiusEarth = 12.3 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.