Gas giant · 1RXS J160929.1-210524

1RXS J160929.1-210524 b

ExoplanetsDiscovered 2008

Scientific overview

1RXS J160929.1-210524 b is a gas giant orbiting 1RXS J160929.1-210524, about 454 light-years from Earth. It was discovered in 2008 using the direct imaging.

Host star

1RXS J160929.1-210524

Spectral type

K7 V

Temperature

4,060 K

Mass

0.85 M☉

Discovery and detection

Detection method

Direct Imaging

Discovery year

2008

Discovered at

Gemini Observatory

Knowledge connections

Orbits1RXS J160929.1-210524
Discovered by methodDirect Imaging
Discovered atGemini Observatory
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: 1RXS J160929.1-210524
Discovery method: Direct Imaging
Discovery year: 2008
Semi-major axis: 330 AU
Radius: 18.65 R⊕
Mass: 3000 M⊕
Density: 2.55 g/cm³ · derived
Equilibrium temp.: 1700 K
Distance: 454 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 density2.55 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 3000 M⊕ · NASA
- radiusEarth = 18.65 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.