HAT-P-28 b
A confirmed exoplanet orbiting HAT-P-28.
Compared with Earth
- Size
- About 14 times Earth's width.
- Mass
- About 199 times Earth's mass.
- Temperature
- About 1,111 °C (2,032 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.3 Earth days.
Planet
- Radius
- 13.59 × Earth
- Mass
- 199 × Earth
- Density
- 0.44 g/cm³
- Equilibrium temperature
- 1,384 K
- Starlight received
- Unknown
- Orbital period
- 3.257 days
- Average distance from its star
- 0.0434 AU
Star
- Host star
- HAT-P-28
- Spectral class
- G — sun-like
- Surface temperature
- 5,680 K
- Radius
- 1.103 × Sun
- Mass
- 1.025 × Sun
- Age
- 6.1 billion years
System
- Distance from Earth
- 1,309 light-years (401.3 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2011
- Method
- Transit
- Facility
- HATNet
Data from the NASA Exoplanet Archive, synced October 14, 2026.