HD 177565 is 55.2 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G8V star; the first was found in 2017 by radial velocity (La Silla Observatory).
Fly there in 3DHD 177565 b goes round its star every 44.5 days, 2.0 times as often as Mercury goes round the Sun.
| Spectral type | G8V |
| Surface temperature | 5,627 K |
| Mass | 1 solar masses |
| Radius | 0.971489 solar radii |
| Luminosity | 0.8832 times the Sun |
| Apparent magnitude | 6.15 |
| Age | about 6.88 billion years |
| Distance from the Sun | 55.2 light-years (16.9 parsecs) |
| Position (J2000) | RA 286.7176°, Dec -37.8122° |
| Constellation | Corona Australis |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 177565 b | 44.5 days | 0.246 AU | 4 R⊕ estimated | 15.1 M⊕ minimum | Radial Velocity, 2017 |
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 5,627 K, 0.88 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.90 to 1.60 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 55 years ago, within living memory.