HD 110067

Planetary system · 104.9 light-years away · also HD 110067, TYC 1448-433-1

HD 110067 is 105 light-years from the Sun. The NASA Exoplanet Archive lists 6 planets around this K0.0 V star; the first was found in 2023 by transit (Multiple Observatories).

Fly there in 3D

Worth knowing

HD 110067 b goes round its star every 9.11 days, 10 times as often as Mercury goes round the Sun.

HD 110067 is one of 3 stars in its system: HD 110067 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 typeK0.0 V
Surface temperature5,266 K
Mass0.798 solar masses
Radius0.788 solar radii
Luminosity0.4343 times the Sun
Apparent magnitude8.419
Ageabout 8.1 billion years
Distance from the Sun104.9 light-years (32.2 parsecs)
Position (J2000)RA 189.8392°, Dec 20.0273°
ConstellationComa Berenices

The other star

HD 110067 B is a K0 star of magnitude 8.9, moving through space with it. In 2015 it was 415.6″ from HD 110067, at position angle 148° (Washington Double Star Catalog, 12396+1956 BGH 40 AB): 13,365 AU on the sky at this distance. The true distance can only be larger.

Planets (6)

PlanetYearOrbitRadiusMassFound
HD 110067 b9.11 days0.0793 AU2.2 R⊕5.69 M⊕Transit, 2023
HD 110067 c13.7 days0.104 AU2.388 R⊕6.3 M⊕Transit, 2023
HD 110067 d20.5 days0.136 AU2.852 R⊕8.52 M⊕Transit, 2023
HD 110067 e30.8 days0.178 AU1.94 R⊕3.9 M⊕Transit, 2023
HD 110067 f41.1 days0.216 AU2.601 R⊕5.04 M⊕Transit, 2023
HD 110067 g54.8 days0.262 AU2.607 R⊕8.4 M⊕Transit, 2023

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 5,266 K, 0.43 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.65 to 1.16 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 105 years ago, around 1920.

Nearest systems to it

Also found by Multiple Observatories

Sources

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