Kepler-1705 is 5,328 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 6,312 K star; the first was found in 2021 by transit (Kepler).
Fly there in 3DKepler-1705 b goes round its star every 9.04 days, 10 times as often as Mercury goes round the Sun.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Surface temperature | 6,312 K |
| Mass | 1.139 solar masses |
| Radius | 1.259 solar radii |
| Luminosity | 2.26 times the Sun |
| Apparent magnitude | 15.8 |
| Age | about 2.59 billion years |
| Distance from the Sun | 5327.7 light-years (1633.5 parsecs) |
| Position (J2000) | RA 301.5785°, Dec 44.3122° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-1705 c | 11.3 days | 0.103 AU from Kepler’s law | 2.05 R⊕ | 5.42 M⊕ | Transit, 2021 |
| Kepler-1705 b | 9.04 days | 0.0800 AU | 2.03 R⊕ | 4.47 M⊕ | Transit, 2021 |
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.
For a star of 6,312 K, 2.3 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.38 to 2.41 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 5,328 years ago, around 3300 BC.