HD 141399

Planetary system · 120.7 light-years away · also HD 141399, HIP 77301

HD 141399 is 121 light-years from the Sun. The NASA Exoplanet Archive lists 4 planets around this K0 star; the first was found in 2014 by radial velocity (Multiple Observatories).

Fly there in 3D

Worth knowing

HD 141399 e takes 13.7 years to go round its star once.

The star

Spectral typeK0
Surface temperature5,600 K
Mass1.07 solar masses
Radius1.38724 solar radii
Luminosity1.59 times the Sun
Apparent magnitude7.20856
Distance from the Sun120.7 light-years (37.0 parsecs)
Position (J2000)RA 236.7235°, Dec 46.9863°
ConstellationBoötes

Planets (4)

PlanetYearOrbitRadiusMassFound
HD 141399 b94.4 days0.415 AU14.3 R⊕ estimated143.34 M⊕ minimumRadial Velocity, 2014
HD 141399 c202.0 days0.689 AU13.6 R⊕ estimated422.71 M⊕ minimumRadial Velocity, 2014
HD 141399 d2.9 years2.090 AU13.7 R⊕ estimated375.04 M⊕ minimumRadial Velocity, 2014
HD 141399 e13.7 years5.000 AU14.1 R⊕ estimated209.77 M⊕ minimumRadial Velocity, 2014

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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