Gas giant · PSR B1620-26

PSR B1620-26 b

ExoplanetsDiscovered 2003

Scientific overview

PSR B1620-26 b is a gas giant orbiting PSR B1620-26. It was discovered in 2003 using the pulsar timing.

Host star

Mass

1.35 M☉

Discovery and detection

Detection method

Discovery year

2003

Hubble Space Telescope

Knowledge connections

OrbitsPSR B1620-26
Discovered by methodPulsar Timing
Discovered by missionHubble Space Telescope
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: PSR B1620-26
Discovery method: Pulsar Timing
Discovery year: 2003
Semi-major axis: 23 AU
Radius: 13.3 R⊕
Mass: 794.58 M⊕
Density: 1.86 g/cm³ · derived

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 density1.86 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 794.58 M⊕ · NASA
- radiusEarth = 13.3 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.