Kepler-340 is 2,638 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 6,620 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-340 b goes round its star every 14.8 days, 6 times as often as Mercury goes round the Sun.
| Surface temperature | 6,620 K |
| Mass | 1.65 solar masses |
| Radius | 1.85 solar radii |
| Luminosity | 7.37 times the Sun |
| Apparent magnitude | 12.329 |
| Age | about 1.29 billion years |
| Distance from the Sun | 2637.8 light-years (808.8 parsecs) |
| Position (J2000) | RA 295.9335°, Dec 40.3006° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-340 b | 14.8 days | 0.134 AU | 2.53 R⊕ | 6.94 M⊕ estimated | Transit, 2014 |
| Kepler-340 c | 22.8 days | 0.178 AU | 3.37 R⊕ | 11.3 M⊕ estimated | Transit, 2014 |
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.