HD 190360 is 52.2 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this G7 IV-V star; the first was found in 2003 by radial velocity (Haute-Provence Observatory).
Fly there in 3DHD 190360 c goes round its star every 17.1 days, 5 times as often as Mercury goes round the Sun.
HD 190360 is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Spectral type | G7 IV-V |
| Surface temperature | 5,560 K |
| Mass | 0.996 solar masses |
| Radius | 1.14 solar radii |
| Luminosity | 1.165 times the Sun |
| Apparent magnitude | 5.738 |
| Age | about 11.3 billion years |
| Distance from the Sun | 52.2 light-years (16.0 parsecs) |
| Position (J2000) | RA 300.9092°, Dec 29.8945° |
| Constellation | Cygnus |
HD 190360 B is a M5 star of magnitude 14.8, judged a true companion. In 2016 it was 178.1″ from HD 190360, at position angle 232° (Washington Double Star Catalog, 20036+2954 LDS6339 AB): 2,851 AU on the sky at this distance. The true distance can only be larger.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 190360 c | 17.1 days | 0.130 AU | 5.53 R⊕ estimated | 26.2 M⊕ | Radial Velocity, 2005 |
| HD 190360 d | 88.7 days | 0.389 AU | 3.48 R⊕ estimated | 11.9 M⊕ | Radial Velocity, 2026 |
| HD 190360 b | 7.9 years | 3.965 AU | 13.5 R⊕ estimated | 537 M⊕ | Radial Velocity, 2003 |
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 5,560 K, 1.2 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.04 to 1.84 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 52 years ago, within living memory.