HD 95089

Planetary system · 446.7 light-years away · also HD 95089, HIP 53666

HD 95089 is 447 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G8/K0 IV star; the first was found in 2009 by radial velocity (W. M. Keck Observatory).

Fly there in 3D

Worth knowing

HD 95089 c takes 4.9 years to go round its star once.

The star

Spectral typeG8/K0 IV
Surface temperature4,918 K
Mass1.54 solar masses
Radius5.08 solar radii
Luminosity13.5 times the Sun
Apparent magnitude7.92
Ageabout 2.5 billion years
Distance from the Sun446.7 light-years (137.0 parsecs)
Position (J2000)RA 164.6987°, Dec 1.7290°
ConstellationLeo

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 95089 b464.4 days1.360 AU13.7 R⊕ estimated400.47 M⊕ minimumRadial Velocity, 2009
HD 95089 c4.9 years3.330 AU13.1 R⊕ estimated1096.5 M⊕ minimumRadial Velocity, 2016

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.

The planets, compared

For a star of 4,918 K, 14 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 3.66 to 6.64 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 447 years ago, around 1580.

Nearest systems to it

Also found by W. M. Keck Observatory

Sources

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