KELT-12 b
A confirmed exoplanet orbiting KELT-12.
Compared with Earth
- Size
- About 20 times Earth's width.
- Mass
- About 302 times Earth's mass.
- Temperature
- About 1,527 °C (2,780 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 1,749 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 5 Earth days.
Planet
- Radius
- 19.95 × Earth
- Mass
- 301.9 × Earth
- Density
- 0.209 g/cm³
- Equilibrium temperature
- 1,800 K
- Starlight received
- 1,749 × Earth
- Orbital period
- 5.032 days
- Average distance from its star
- 0.06708 AU
Star
- Host star
- KELT-12
- Spectral class
- F — yellow-white
- Surface temperature
- 6,279 K
- Radius
- 2.37 × Sun
- Mass
- 1.591 × Sun
- Age
- 2.2 billion years
System
- Distance from Earth
- 1,200 light-years (368 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2017
- Method
- Transit
- Facility
- KELT-North
Data from the NASA Exoplanet Archive, synced October 14, 2026.