HD 207897 b
A confirmed exoplanet orbiting HD 207897.
Compared with Earth
- Size
- About 2.3 times Earth's width.
- Mass
- About 15 times Earth's mass.
- Temperature
- About 309 °C (587 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 16 Earth days.
Planet
- Radius
- 2.343 × Earth
- Mass
- 14.8 × Earth
- Density
- 6.29 g/cm³
- Equilibrium temperature
- 581.8 K
- Starlight received
- Unknown
- Orbital period
- 16.2 days
- Average distance from its star
- 0.117 AU
Star
- Host star
- HD 207897
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,106 K
- Radius
- 0.7827 × Sun
- Mass
- 0.8208 × Sun
- Age
- 4.7 billion years
System
- Distance from Earth
- 92.28 light-years (28.29 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2021
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.