K2-229 is 335 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G9 star; the first was found in 2018 by transit (K2).
Fly there in 3DK2-229 b goes round its star every 14.0 hours, 151 times as often as Mercury goes round the Sun.
| Spectral type | G9 |
| Surface temperature | 5,315 K |
| Mass | 0.87 solar masses |
| Radius | 0.79 solar radii |
| Luminosity | 0.4086 times the Sun |
| Apparent magnitude | 10.985 |
| Age | about 5.4 billion years |
| Distance from the Sun | 334.5 light-years (102.6 parsecs) |
| Position (J2000) | RA 186.8729°, Dec -6.7218° |
| Constellation | Virgo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-229 b | 14.0 hours | 0.0131 AU | 1 R⊕ | 2.55 M⊕ | Transit, 2018 |
| K2-229 c | 8.33 days | 0.0769 AU | 2.03 R⊕ | 7 M⊕ | Transit, 2018 |
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 5,315 K, 0.41 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.62 to 1.12 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 335 years ago, around 1690.