KELT-17 b
A confirmed exoplanet orbiting KELT-17.
Compared with Earth
- Size
- About 17 times Earth's width.
- Mass
- About 416 times Earth's mass.
- Temperature
- About 1,814 °C (3,297 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.1 Earth days.
Planet
- Radius
- 17.09 × Earth
- Mass
- 416.4 × Earth
- Density
- 0.46 g/cm³
- Equilibrium temperature
- 2,087 K
- Starlight received
- Unknown
- Orbital period
- 3.08 days
- Average distance from its star
- 0.04881 AU
Star
- Host star
- KELT-17
- Spectral class
- A — white
- Surface temperature
- 7,454 K
- Radius
- 1.645 × Sun
- Mass
- 1.635 × Sun
- Age
- 0.65 billion years
System
- Distance from Earth
- 738.7 light-years (226.5 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- KELT
Data from the NASA Exoplanet Archive, synced October 14, 2026.