Gas giant · HIP 39017

HIP 39017 b

ExoplanetsDiscovered 2024

Scientific overview

HIP 39017 b is a gas giant orbiting HIP 39017, completing an orbit every 31000 days, about 216 light-years from Earth. It was discovered in 2024 using the direct imaging.

Host star

HIP 39017

Spectral type

A9/F0

Temperature

7,201 K

Mass

1.52 M☉

Discovery and detection

Detection method

Direct Imaging

Discovery year

2024

Knowledge connections

OrbitsHIP 39017
Discovered by methodDirect Imaging
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: HIP 39017
Discovery method: Direct Imaging
Discovery year: 2024
Orbital period: 31000 d
Semi-major axis: 22.1 AU
Eccentricity: 0.55
Radius: 12 R⊕
Mass: 7500.75 M⊕
Density: 23.93 g/cm³ · derived
Equilibrium temp.: 91 K
Insolation: 0.01 S⊕
Distance: 216 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 density23.93 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 7500.75 M⊕ · NASA
- radiusEarth = 12 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.