HD 37124 is 103 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this G4 V star; the first was found in 2002 by radial velocity (W. M. Keck Observatory).
Fly there in 3DHD 37124 d takes 5.1 years to go round its star once.
| Spectral type | G4 V |
| Surface temperature | 5,699 K |
| Mass | 0.85 solar masses |
| Radius | 0.949168 solar radii |
| Luminosity | 0.7723 times the Sun |
| Apparent magnitude | 7.68 |
| Age | about 4 billion years |
| Distance from the Sun | 103.3 light-years (31.7 parsecs) |
| Position (J2000) | RA 84.2600°, Dec 20.7290° |
| Constellation | Taurus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 37124 b | 154.4 days | 0.534 AU | 14 R⊕ estimated | 214.54 M⊕ minimum | Radial Velocity, 2002 |
| HD 37124 c | 885.5 days | 1.710 AU | 14.1 R⊕ estimated | 207.23 M⊕ minimum | Radial Velocity, 2002 |
| HD 37124 d | 5.1 years | 2.807 AU | 14 R⊕ estimated | 221.21 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 5,699 K, 0.77 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.84 to 1.48 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 103 years ago, around 1920.