K2-63 is 1,688 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 6,771 K star; the first was found in 2016 by transit (K2).
Fly there in 3DK2-63 b goes round its star every 20.3 days, 4 times as often as Mercury goes round the Sun.
| Surface temperature | 6,771 K |
| Mass | 1.4 solar masses |
| Radius | 1.63 solar radii |
| Luminosity | 1.658 times the Sun |
| Apparent magnitude | 12.98 |
| Distance from the Sun | 1688.0 light-years (517.5 parsecs) |
| Position (J2000) | RA 333.4268°, Dec -12.0663° |
| Constellation | Aquarius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-63 b | 20.3 days | 0.163 AU | 3.22 R⊕ | 10.5 M⊕ estimated | Transit, 2016 |
| K2-63 c | 25.5 days | 0.189 AU | 3.9 R⊕ | 14.5 M⊕ estimated | Transit, 2016 |
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 6,771 K, 1.7 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.15 to 2.00 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 1,688 years ago, around AD 340.