HD 176986 is 90.6 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this K2.5 V star; the first was found in 2017 by radial velocity (Multiple Observatories).
Fly there in 3DHD 176986 b goes round its star every 6.49 days, 14 times as often as Mercury goes round the Sun.
| Spectral type | K2.5 V |
| Surface temperature | 4,931 K |
| Mass | 0.789 solar masses |
| Radius | 0.782 solar radii |
| Luminosity | 0.331 times the Sun |
| Apparent magnitude | 8.42 |
| Age | about 4.3 billion years |
| Distance from the Sun | 90.6 light-years (27.8 parsecs) |
| Position (J2000) | RA 285.7739°, Dec -11.0449° |
| Constellation | Aquila |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 176986 b | 6.49 days | 0.0630 AU | — | 1487.8 M⊕ | Radial Velocity, 2017 |
| HD 176986 c | 16.8 days | 0.119 AU | — | 2098 M⊕ | Radial Velocity, 2017 |
| HD 176986 d | 61.4 days | 0.281 AU | 2.49 R⊕ estimated | 6.76 M⊕ minimum | Radial Velocity, 2026 |
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 4,931 K, 0.33 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.57 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 91 years ago, within living memory.