HD 4732 is 179 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K0 IV star; the first was found in 2012 by radial velocity (Multiple Observatories).
Fly there in 3DHD 4732 c takes 8.7 years to go round its star once.
HD 4732 is one of 2 stars in its system. The position of the other star is not catalogued, so only HD 4732 and its planets are drawn.
| Spectral type | K0 IV |
| Surface temperature | 4,898 K |
| Mass | 1.39 solar masses |
| Radius | 5.03 solar radii |
| Luminosity | 13.13 times the Sun |
| Apparent magnitude | 5.9 |
| Age | about 1.47 billion years |
| Distance from the Sun | 178.7 light-years (54.8 parsecs) |
| Position (J2000) | RA 12.3085°, Dec -24.1369° |
| Constellation | Cetus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 4732 b | 371.7 days | 1.129 AU | 13.4 R⊕ estimated | 631.21 M⊕ minimum | Radial Velocity, 2012 |
| HD 4732 c | 8.7 years | 4.725 AU | 13.1 R⊕ estimated | 1069.5 M⊕ minimum | Radial Velocity, 2012 |
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 4,898 K, 13 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 3.61 to 6.56 AU. 1 of its 2 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 179 years ago, around 1850.