Gas giant · PZ Tel

PZ Tel b

ExoplanetsDiscovered 2023

Scientific overview

PZ Tel b is a gas giant orbiting PZ Tel, completing an orbit every 44000 days, about 154 light-years from Earth. It was discovered in 2023 using the direct imaging.

Host star

PZ Tel

Spectral type

G9 IV

Temperature

5,169 K

Mass

1.36 M☉

Discovery and detection

Detection method

Direct Imaging

Discovery year

2023

Discovered at

W. M. Keck Observatory

Knowledge connections

OrbitsPZ Tel
Discovered by methodDirect Imaging
Discovered atW. M. Keck Observatory
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: PZ Tel
Discovery method: Direct Imaging
Discovery year: 2023
Orbital period: 44000 d
Semi-major axis: 27 AU
Eccentricity: 0.52
Radius: 11.9 R⊕
Mass: 8581.37 M⊕
Density: 28.08 g/cm³ · derived
Equilibrium temp.: 54 K
Distance: 154 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 density28.08 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 8581.37 M⊕ · NASA
- radiusEarth = 11.9 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.