HD 97658 is 70.3 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K1 V star; the first was found in 2010 by radial velocity (W. M. Keck Observatory).
Fly there in 3DHD 97658 b goes round its star every 9.49 days, 9 times as often as Mercury goes round the Sun.
| Spectral type | K1 V |
| Surface temperature | 5,212 K |
| Mass | 0.85 solar masses |
| Radius | 0.728 solar radii |
| Luminosity | 0.351 times the Sun |
| Apparent magnitude | 7.76 |
| Age | about 3.9 billion years |
| Distance from the Sun | 70.3 light-years (21.6 parsecs) |
| Position (J2000) | RA 168.6377°, Dec 25.7106° |
| Constellation | Leo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 97658 b | 9.49 days | 0.0805 AU | 2.12 R⊕ | 8.3 M⊕ | Radial Velocity, 2010 |
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 5,212 K, 0.35 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.58 to 1.04 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 70 years ago, within living memory.