HD 148797 b
A confirmed exoplanet orbiting HD 148797.
Compared with Earth
- Size
- About 8.3 times Earth's width.
- Mass
- About 39 times Earth's mass.
- Temperature
- About 489 °C (912 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 42 Earth days.
Planet
- Radius
- 8.25 × Earth
- Mass
- 39.3 × Earth
- Density
- 0.39 g/cm³
- Equilibrium temperature
- 762 K
- Starlight received
- Unknown
- Orbital period
- 42.1 days
- Average distance from its star
- 0.2568 AU
Star
- Host star
- HD 148797
- Spectral class
- F — yellow-white
- Surface temperature
- 6,441 K
- Radius
- 1.547 × Sun
- Mass
- 1.272 × Sun
- Age
- 2.94 billion years
System
- Distance from Earth
- 562.2 light-years (172.4 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2026
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.