HD 134606

Planetary system · 87.4 light-years away · also HD 134606, HIP 74653

HD 134606 is 87.4 light-years from the Sun. The NASA Exoplanet Archive lists 5 planets around this G5IV star; the first was found in 2024 by radial velocity (Multiple Observatories).

Fly there in 3D

Worth knowing

HD 134606 e goes round its star every 4.32 days, 20 times as often as Mercury goes round the Sun.

The star

Spectral typeG5IV
Surface temperature5,576 K
Mass1.046 solar masses
Radius1.158 solar radii
Luminosity1.161 times the Sun
Apparent magnitude6.86
Ageabout 7.3 billion years
Distance from the Sun87.4 light-years (26.8 parsecs)
Position (J2000)RA 228.8104°, Dec -70.5203°
ConstellationApus

Planets (5)

PlanetYearOrbitRadiusMassFound
HD 134606 e4.32 days0.0527 AU1.33 R⊕ estimated2.34 M⊕ minimumRadial Velocity, 2024
HD 134606 b12.1 days0.105 AU2.97 R⊕ estimated9.09 M⊕ minimumRadial Velocity, 2024
HD 134606 f26.9 days0.178 AU2.24 R⊕ estimated5.63 M⊕ minimumRadial Velocity, 2024
HD 134606 c58.9 days0.301 AU3.37 R⊕ estimated11.31 M⊕ minimumRadial Velocity, 2024
HD 134606 d966.5 days1.941 AU7.59 R⊕ estimated44.8 M⊕ minimumRadial Velocity, 2024

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 5,576 K, 1.2 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.04 to 1.84 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 87 years ago, within living memory.

Nearest systems to it

Also found by Multiple Observatories

Sources

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