HD 4308 is 71.8 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G5V star; the first was found in 2005 by radial velocity (La Silla Observatory).
Fly there in 3DHD 4308 b goes round its star every 15.6 days, 6 times as often as Mercury goes round the Sun.
| Spectral type | G5V |
| Surface temperature | 5,686 K |
| Mass | 0.93 solar masses |
| Radius | 1.02 solar radii |
| Luminosity | 0.9908 times the Sun |
| Apparent magnitude | 6.55 |
| Age | about 4.3 billion years |
| Distance from the Sun | 71.8 light-years (22.0 parsecs) |
| Position (J2000) | RA 11.1653°, Dec -65.6527° |
| Constellation | Tucana |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 4308 b | 15.6 days | 0.120 AU | 4.12 R⊕ estimated | 15.892 M⊕ minimum | Radial Velocity, 2005 |
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 5,686 K, 0.99 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.95 to 1.68 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 72 years ago, within living memory.