K2-66 is 1,676 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,887 K star; the first was found in 2016 by transit (K2).
Fly there in 3DK2-66 b goes round its star every 5.07 days, 17 times as often as Mercury goes round the Sun.
| Surface temperature | 5,887 K |
| Mass | 1.11 solar masses |
| Radius | 1.67 solar radii |
| Luminosity | 3.208 times the Sun |
| Apparent magnitude | 11.71 |
| Distance from the Sun | 1676.0 light-years (513.9 parsecs) |
| Position (J2000) | RA 331.5267°, Dec -10.7115° |
| Constellation | Aquarius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-66 b | 5.07 days | 0.0598 AU | 2.49 R⊕ | 21.3 M⊕ | 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 5,887 K, 3.2 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.69 to 2.97 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 1,676 years ago, around AD 350.