Gas giant · HD 100546

HD 100546 b

ExoplanetsDiscovered 2014

Scientific overview

HD 100546 b is a gas giant orbiting HD 100546, about 358 light-years from Earth. It was discovered in 2014 using the direct imaging.

Host star

Spectral type

B9 Vne

Temperature

10,500 K

Mass

2.4 M☉

Discovery and detection

Detection method

Discovery year

2014

Very Large Telescope (VLT)

Knowledge connections

OrbitsHD 100546
Discovered by methodDirect Imaging
Discovered atVery Large Telescope (VLT)
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: HD 100546
Discovery method: Direct Imaging
Discovery year: 2014
Semi-major axis: 53 AU
Radius: 77.34 R⊕
Mass: 2701.54 M⊕
Density: 0.03 g/cm³ · derived
Equilibrium temp.: 95 K
Insolation: 0.01 S⊕
Distance: 358 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 density0.03 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 2701.54 M⊕ · NASA
- radiusEarth = 77.34 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.