HAT-P-54 b
A confirmed exoplanet orbiting HAT-P-54.
Compared with Earth
- Size
- About 11 times Earth's width.
- Mass
- About 242 times Earth's mass.
- Temperature
- About 545 °C (1,013 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.8 Earth days.
Planet
- Radius
- 10.58 × Earth
- Mass
- 241.6 × Earth
- Density
- 1.118 g/cm³
- Equilibrium temperature
- 818 K
- Starlight received
- Unknown
- Orbital period
- 3.8 days
- Average distance from its star
- 0.04117 AU
Star
- Host star
- HAT-P-54
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,390 K
- Radius
- 0.617 × Sun
- Mass
- 0.645 × Sun
- Age
- 3.9 billion years
System
- Distance from Earth
- 468.5 light-years (143.7 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2015
- Method
- Transit
- Facility
- HATNet
Data from the NASA Exoplanet Archive, synced October 14, 2026.