HD 19994 is 73.5 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F8 V star; the first was found in 2003 by radial velocity (La Silla Observatory).
Fly there in 3DHD 19994 b takes 466.2 days to go round its star once.
HD 19994 is one of 3 stars in its system: HD 19994 B drawn from the Washington Double Star Catalog; the position of one more star is not catalogued, so it is not drawn.
| Spectral type | F8 V |
| Surface temperature | 6,188 K |
| Mass | 1.365 solar masses |
| Radius | 1.79647 solar radii |
| Luminosity | 3.802 times the Sun |
| Apparent magnitude | 5.06345 |
| Age | about 2.4 billion years |
| Distance from the Sun | 73.5 light-years (22.5 parsecs) |
| Position (J2000) | RA 48.1943°, Dec -1.1964° |
| Constellation | Cetus |
HD 19994 B has no spectral type listed of magnitude 11, with a computed orbit. In 2024 it was 2.2″ from HD 19994, at position angle 188° (Washington Double Star Catalog, 03128-0112 HJ 663 AB): 49.6 AU on the sky at this distance. The true distance can only be larger. Its colour is estimated from its brightness.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 19994 b | 466.2 days | 1.305 AU | 13.6 R⊕ estimated | 435.41 M⊕ minimum | 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 6,188 K, 3.8 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.81 to 3.16 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 73 years ago, within living memory.