Gas giant · HD 135344 A

HD 135344 A b

ExoplanetsDiscovered 2025

Scientific overview

HD 135344 A b is a gas giant orbiting HD 135344 A, about 462 light-years from Earth. It was discovered in 2025 using the direct imaging.

Host star

Spectral type

A0 V

Temperature

9,540 K

Mass

2.32 M☉

Discovery and detection

Detection method

Discovery year

2025

Very Large Telescope (VLT)

Knowledge connections

OrbitsHD 135344 A
Discovered by methodDirect Imaging
Discovered atVery Large Telescope (VLT)
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: HD 135344 A
Discovery method: Direct Imaging
Discovery year: 2025
Semi-major axis: 16.5 AU
Eccentricity: 0.5
Radius: 16.25 R⊕
Mass: 3178.28 M⊕
Density: 4.08 g/cm³ · derived
Equilibrium temp.: 1585 K
Insolation: 0.06 S⊕
Distance: 462 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 density4.08 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 3178.28 M⊕ · NASA
- radiusEarth = 16.25 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.