Gas giant · HD 33564

HD 33564 b

ExoplanetsDiscovered 2005

Scientific overview

HD 33564 b is a gas giant orbiting HD 33564, completing an orbit every 388 days, about 68 light-years from Earth. It was discovered in 2005 using the radial velocity method.

Host star

HR 1686

Spectral type

F6 V

Temperature

6,250 K

Mass

1.25 M☉

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2005

Knowledge connections

OrbitsHR 1686
Discovered by methodRadial Velocity Method
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: HR 1686
Discovery method: Radial Velocity Method
Discovery year: 2005
Orbital period: 388 d
Semi-major axis: 1.1 AU
Eccentricity: 0.34
Radius: 12.5 R⊕
Mass: 2892.1 M⊕
Density: 8.16 g/cm³ · derived
Equilibrium temp.: 344 K
Insolation: 2.83 S⊕
Distance: 68 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 density8.16 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 2892.1 M⊕ · NASA
- radiusEarth = 12.5 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.