The star
The star
HD 110067
- Type
- K0.0 V
- Surface
- ≈ 5,266 K
- Size
- 0.79 × the Sun
- Mass
- 0.80 × the Sun
- Brightness
- 0.434 × the Sun
- Habitable zone
- 0.509–1.22 AU
The planets
HD 110067
HD 110067 b
- Year
- 9.11 days
- Distance from star
- 0.0793 AU
- Mass
- 5.7 Earths
- Size
- 2.2 × Earth
- Temperature
- ≈ 800 K (+527 °C)
- Found
- 2023, transit (Multiple Observatories)
HD 110067
HD 110067 c
- Year
- 13.67 days
- Distance from star
- 0.104 AU
- Mass
- 6.3 Earths
- Size
- 2.4 × Earth
- Temperature
- ≈ 699 K (+426 °C)
- Found
- 2023, transit (Multiple Observatories)
HD 110067
HD 110067 d
- Year
- 20.52 days
- Distance from star
- 0.136 AU
- Mass
- 8.5 Earths
- Size
- 2.9 × Earth
- Temperature
- ≈ 602 K (+329 °C)
- Found
- 2023, transit (Multiple Observatories)
HD 110067
HD 110067 e
- Year
- 30.79 days
- Distance from star
- 0.178 AU
- Mass
- 3.9 Earths
- Size
- 1.9 × Earth
- Temperature
- ≈ 533 K (+260 °C)
- Found
- 2023, transit (Multiple Observatories)
HD 110067
HD 110067 f
- Year
- 41.06 days
- Distance from star
- 0.216 AU
- Mass
- 5 Earths
- Size
- 2.6 × Earth
- Temperature
- ≈ 489 K (+216 °C)
- Found
- 2023, transit (Multiple Observatories)
HD 110067
HD 110067 g
- Year
- 54.77 days
- Distance from star
- 0.262 AU
- Mass
- 8.4 Earths
- Size
- 2.6 × Earth
- Temperature
- ≈ 440 K (+167 °C)
- Found
- 2023, transit (Multiple Observatories)
Masses found by the wobble method are minimums, because the orbit's tilt is unknown. Temperatures are equilibrium estimates for a bare planet, before any atmosphere.
How we know
The shadow
The planet passes in front of its star and dims it by a fraction of a percent, every orbit. The dip gives the planet's size and year.
Sources
- Planet and star parameters: NASA Exoplanet Archive, Planetary Systems Composite Parameters, retrieved 1 Nov 2026. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.
- Position: HYG Database v4.1 (CC BY-SA 4.0).
- Habitable zone: a simple estimate from the star's brightness (√L × 0.95 to 1.67 AU), shown as a guide.