1RXS J160929.1-210524 b
A confirmed exoplanet orbiting 1RXS J160929.1-210524.
Compared with Earth
- Mass
- About 3,000 times Earth's mass.
- Temperature
- About 1,427 °C (2,600 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Planet
- Radius
- Unknown
- Mass
- 3,000 × Earth
- Density
- Unknown
- Equilibrium temperature
- 1,700 K
- Starlight received
- Unknown
- Orbital period
- Unknown
- Average distance from its star
- 330 AU
Star
- Host star
- 1RXS J160929.1-210524
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,060 K
- Radius
- Unknown
- Mass
- 0.85 × Sun
- Age
- 0.005 billion years
System
- Distance from Earth
- 453.8 light-years (139.1 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2008
- Method
- Imaging
- Facility
- Gemini Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.