Star system, 130 light-years
HD 10180 and its six planets
HD 10180 g is an exoplanet of unknown width, with a mass of about 3,375 times Earth's, 130 light-years away, orbiting in its star's computed habitable zone.
HD 10180 is a star of spectral type G1 V, 130 light-years from us, with six known planets. This page takes them one at a time.
Drawn at the system's own scale, every orbit from the Archive's numbers.
What is measured, what is computed, what is imagined.
measured The period, and where the table says so the width and the mass, by the method named in each section.
computed Anything marked computed: the size of an orbit where Kepler's third law corrects the table, the temperature of a bare ball at that distance, the starlight received, and the habitable zone.
imagined The picture is an artist's impression. Nobody has seen the surface of a planet of another star: its colour, clouds and land are not known, and the share picture says so in its corner.
The planets
HD 10180 c
HD 10180 c is an exoplanet of unknown width, with a mass of about 2,742 times Earth's, 130 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Mass
- 2,742 times Earth's measured
- One year
- 5.75969 days measured
- Distance from its star
- 0.06412 au from the Archive
- Temperature of a bare ball there
- 1,111 K computed, not measured
- Starlight, against Earth's
- 362 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2010. Its orbit is closer to its star than the habitable zone computed for it.
See HD 10180 c in 3D · The picture is an artist's impression.
HD 10180 d
HD 10180 d is an exoplanet of unknown width, with a mass of about 3,296 times Earth's, 130 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Mass
- 3,296 times Earth's measured
- One year
- 16.357 days measured
- Distance from its star
- 0.12859 au from the Archive
- Temperature of a bare ball there
- 784 K computed, not measured
- Starlight, against Earth's
- 90.1 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2010. Its orbit is closer to its star than the habitable zone computed for it.
See HD 10180 d in 3D · The picture is an artist's impression.
HD 10180 e
HD 10180 e is an exoplanet about 5.39 times Earth's width (a size estimated from its mass), 130 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 5.39 × Earth's estimated
- Mass
- 25.1 times Earth's measured
- One year
- 49.748 days measured
- Distance from its star
- 0.2699 au from the Archive
- Temperature of a bare ball there
- 541 K computed, not measured
- Starlight, against Earth's
- 20.5 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2010. Its orbit is closer to its star than the habitable zone computed for it.
See HD 10180 e in 3D · The picture is an artist's impression.
HD 10180 f
HD 10180 f is an exoplanet about 5.24 times Earth's width (a size estimated from its mass), 130 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 5.24 × Earth's estimated
- Mass
- 23.9 times Earth's measured
- One year
- 122.744 days measured
- Distance from its star
- 0.4929 au from the Archive
- Temperature of a bare ball there
- 401 K computed, not measured
- Starlight, against Earth's
- 6.13 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2010. Its orbit is closer to its star than the habitable zone computed for it.
See HD 10180 f in 3D · The picture is an artist's impression.
HD 10180 g
HD 10180 g is an exoplanet of unknown width, with a mass of about 3,375 times Earth's, 130 light-years away, orbiting in its star's computed habitable zone.
- Mass
- 3,375 times Earth's measured
- One year
- 604.67 days measured
- Distance from its star
- 1.427 au from the Archive
- Temperature of a bare ball there
- 235 K computed, not measured
- Starlight, against Earth's
- 0.732 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2010. Its orbit lies inside the conservative habitable zone computed for its star (liquid water on a rocky world's surface would be possible there, which says nothing about whether any is).
See HD 10180 g in 3D · The picture is an artist's impression.
HD 10180 h
HD 10180 h is an exoplanet about 9.4 times Earth's width (a size estimated from its mass), about 0.8 times Jupiter's, 130 light-years away, orbiting farther from its star than the habitable zone we compute for it.
- Width
- 9.4 × Earth's estimated
- Mass
- 64.4 times Earth's measured
- One year
- 2,205 days measured
- Distance from its star
- 3.381 au from the Archive
- Temperature of a bare ball there
- 153 K computed, not measured
- Starlight, against Earth's
- 0.13 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2010. Its orbit is farther from its star than the habitable zone computed for it.
See HD 10180 h in 3D · The picture is an artist's impression.
The star
- Surface temperature
- 5,911 K
- Width
- 1.109 × the Sun's
- Mass
- 1.06 × the Sun's
- Spectral type
- G1 V
- Distance
- 130 light-years
- Habitable zone, computed
- 1.151 to 2.023 au from the star