KELT-20 is 445 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this A2 V star; the first was found in 2017 by transit (KELT-North).
Fly there in 3DKELT-20 b goes round its star every 3.47 days, 25 times as often as Mercury goes round the Sun.
| Spectral type | A2 V |
| Surface temperature | 8,720 K |
| Mass | 1.76 solar masses |
| Radius | 1.565 solar radii |
| Luminosity | 12.7 times the Sun |
| Apparent magnitude | 7.59 |
| Age | about 0.6 billion years |
| Distance from the Sun | 445.0 light-years (136.4 parsecs) |
| Position (J2000) | RA 294.6614°, Dec 31.2192° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| KELT-20 b | 3.47 days | 0.0542 AU | 19.515 R⊕ | 1074.9 M⊕ | Transit, 2017 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.