Kepler-173 is 2,717 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 6,031 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-173 b goes round its star every 4.26 days, 21 times as often as Mercury goes round the Sun.
| Surface temperature | 6,031 K |
| Mass | 1.067 solar masses |
| Radius | 0.949 solar radii |
| Luminosity | 1.185 times the Sun |
| Apparent magnitude | 14.357 |
| Age | about 3.3 billion years |
| Distance from the Sun | 2717.4 light-years (833.2 parsecs) |
| Position (J2000) | RA 294.6466°, Dec 41.8841° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-173 b | 4.26 days | 0.0480 AU | 1.29 R⊕ | 2.21 M⊕ estimated | Transit, 2014 |
| Kepler-173 c | 8.01 days | 0.0740 AU | 2.43 R⊕ | 6.48 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.