HD 175167 b
HD 175167 b is a exoplanet orbiting HD 175167 in the constellation Pavo. It lies about 232 light-years from Earth and was discovered in 2009 using the radial velocity method.
Is HD 175167 b in the Habitable Zone?
The position of HD 175167 b relative to the habitable zone of HD 175167 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HD 175167 b — one full orbit around HD 175167 — lasts 1,175.0 Earth days, longer than an Earth year. Its orbit is highly elliptical (eccentricity 0.51), swinging dramatically closer to and farther from its star.
How Was HD 175167 b Discovered?
HD 175167 b was discovered in 2009 using the radial velocity method, with observations from Las Campanas Observatory.
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 175167 b?
HD 175167 b is 231.9 light-years (71.1 parsecs) from Earth. Light arriving here tonight left the planet around the year 1795. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 4,081,440 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. HD 175167 b scores 0.38, ranking #595 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 175167
HD 175167
- Mass
- 1.09 M☉
Planetary System
HD 175167 b is the only planet known to orbit HD 175167 so far.
HD 175167 b — Complete Data
| Mass | 4,703.86 Earth masses (14.800 Jupiter masses) |
|---|---|
| Orbital period | 1,175.00 days |
| Eccentricity | 0.510 |
| Earth Similarity Index | 0.38 |
| Distance from Earth | 231.9 light-years (71.1 parsecs) |
| Constellation | Pavo |
| Discovery method | Radial Velocity |
| Discovery facility | Las Campanas Observatory |
| Discovery year | 2009 |
Data: NASA Exoplanet Archive, last updated 2024-09-13. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 175167 b
Is HD 175167 b habitable?
HD 175167 b is not known to orbit within the habitable zone of HD 175167.
How far away is HD 175167 b?
HD 175167 b is about 232 light-years from Earth in the constellation Pavo. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 4,081,440 years to get there.
How long is a year on HD 175167 b?
One orbit around HD 175167 takes 1,175.0 Earth days.
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