HD 19994

Planetary system · 73.5 light-years away · also HD 19994, HIP 14954

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 3D

Worth knowing

HD 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.

The star

Spectral typeF8 V
Surface temperature6,188 K
Mass1.365 solar masses
Radius1.79647 solar radii
Luminosity3.802 times the Sun
Apparent magnitude5.06345
Ageabout 2.4 billion years
Distance from the Sun73.5 light-years (22.5 parsecs)
Position (J2000)RA 48.1943°, Dec -1.1964°
ConstellationCetus

The other star

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.

Planets (1)

PlanetYearOrbitRadiusMassFound
HD 19994 b466.2 days1.305 AU13.6 R⊕ estimated435.41 M⊕ minimumRadial 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.

Sources

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