Gas giant · HD 169142

HD 169142 b

ExoplanetsDiscovered 2023

Scientific overview

HD 169142 b is a gas giant orbiting HD 169142, about 371 light-years from Earth. It was discovered in 2023 using the direct imaging.

Host star

Temperature

7,246 K

Mass

1.85 M☉

Discovery and detection

Detection method

Discovery year

2023

Very Large Telescope (VLT)

Knowledge connections

OrbitsHD 169142
Discovered by methodDirect Imaging
Discovered atVery Large Telescope (VLT)
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: HD 169142
Discovery method: Direct Imaging
Discovery year: 2023
Semi-major axis: 37.2 AU
Radius: 13.1 R⊕
Mass: 953.49 M⊕
Density: 2.34 g/cm³ · derived
Equilibrium temp.: 71 K
Distance: 371 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 density2.34 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 953.49 M⊕ · NASA
- radiusEarth = 13.1 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.