HD 16760 b
The parameters of this planet are disputed or ambiguous in the scientific literature.
HD 16760 b is a exoplanet orbiting the G5 V star HD 16760 in the constellation Perseus. It lies about 164 light-years from Earth and was discovered in 2009 using the radial velocity method. It orbits within the habitable zone of its star — the region where liquid water could exist on a planet's surface.
Is HD 16760 b in the Habitable Zone?
HD 16760 b orbits inside the conservative habitable zone of HD 16760 — the region where a rocky planet could sustain liquid water on its surface. This makes it one of the most interesting known exoplanets in the search for life.
Habitable zone of HD 16760: 0.580–1.378 AU (conservative: 0.735–1.306 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on HD 16760 b — one full orbit around HD 16760 — lasts 466.1 Earth days, longer than an Earth year. It orbits at an average distance of 1.156 AU. Its orbit is mildly elliptical (eccentricity 0.08).
How Was HD 16760 b Discovered?
HD 16760 b was discovered in 2009 using the radial velocity method, with observations from Multiple Facilities.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
How Far Away Is HD 16760 b?
HD 16760 b is 163.7 light-years (50.2 parsecs) from Earth. Light arriving here tonight left the planet around the year 1863. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 2,881,120 years to make the journey.
The Host Star: HD 16760
HD 16760
- Spectral type
- G5 V
- Surface temperature
- 5,518 K (Sun: 5,772 K)
- Mass
- 0.93 M☉
- Radius
- 0.84 R☉
Planetary System
HD 16760 b is the only planet known to orbit HD 16760 so far.
HD 16760 b — Complete Data
| Mass | 6,833.31 Earth masses (21.500 Jupiter masses) |
|---|---|
| Orbital period | 466.08 days |
| Orbital distance | 1.156 AU |
| Eccentricity | 0.079 |
| Distance from Earth | 163.7 light-years (50.2 parsecs) |
| Constellation | Perseus |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Facilities |
| Discovery year | 2009 |
Data: NASA Exoplanet Archive, last updated 2026-06-04. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 16760 b
Is HD 16760 b habitable?
HD 16760 b orbits within the habitable zone of HD 16760, the region where liquid water could exist on a planet's surface. It sits in the conservative habitable zone — the most promising region for habitability. Whether it is actually habitable depends on its atmosphere and composition, which remain unknown.
How far away is HD 16760 b?
HD 16760 b is about 164 light-years from Earth in the constellation Perseus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 2,881,120 years to get there.
How long is a year on HD 16760 b?
One orbit around HD 16760 takes 466.1 Earth days.
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