HIP 8541

Planetary system · 505.9 light-years away · also HD 11343, HIP 8541

HIP 8541 is 506 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K2 III/IV star; the first was found in 2016 by radial velocity (Multiple Observatories).

Fly there in 3D

Worth knowing

HIP 8541 b takes 5.1 years to go round its star once.

HIP 8541 is one of 2 stars in its system. The position of the other star is not catalogued, so only HIP 8541 and its planets are drawn.

The star

Spectral typeK2 III/IV
Surface temperature4,672 K
Mass2.009 solar masses
Radius6.84 solar radii
Luminosity20.42 times the Sun
Apparent magnitude7.88
Ageabout 10.97 billion years
Distance from the Sun505.9 light-years (155.1 parsecs)
Position (J2000)RA 27.5272°, Dec -54.4652°
ConstellationEridanus

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 11343 c228.5 days0.923 AU13.9 R⊕ estimated255.53 M⊕ minimumRadial Velocity, 2022
HIP 8541 b5.1 years3.729 AU12.6 R⊕ estimated2451.7 M⊕Radial 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.

Sources

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