HIP 5763 b
HIP 5763 b is a cold gas giant orbiting the K6 V star HIP 5763 in the constellation Pisces. It lies about 104 light-years from Earth and was discovered in 2021 using the radial velocity method.
Is HIP 5763 b in the Habitable Zone?
The position of HIP 5763 b relative to the habitable zone of HIP 5763 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HIP 5763 b — one full orbit around HIP 5763 — lasts 30.0 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.170 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.05).
How Was HIP 5763 b Discovered?
HIP 5763 b was discovered in 2021 using the radial velocity method, with observations from Cerro Tololo Inter-American 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 HIP 5763 b?
HIP 5763 b is 104.1 light-years (31.9 parsecs) from Earth. Light arriving here tonight left the planet around the year 1922. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 1,832,160 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. HIP 5763 b scores 0.20, ranking #3,888 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HIP 5763
HIP 5763
- Spectral type
- K6 V
- Mass
- 0.72 M☉
Planetary System
HIP 5763 b is the only planet known to orbit HIP 5763 so far.
HIP 5763 b — Complete Data
| Mass (best estimate) | 162.09 Earth masses |
|---|---|
| Orbital period | 30.01 days |
| Orbital distance | 0.170 AU |
| Eccentricity | 0.054 |
| Earth Similarity Index | 0.20 |
| Distance from Earth | 104.1 light-years (31.9 parsecs) |
| Constellation | Pisces |
| Discovery method | Radial Velocity |
| Discovery facility | Cerro Tololo Inter-American Observatory |
| Discovery year | 2021 |
Data: NASA Exoplanet Archive, last updated 2022-01-10. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HIP 5763 b
Is HIP 5763 b habitable?
HIP 5763 b is not known to orbit within the habitable zone of HIP 5763, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is HIP 5763 b?
HIP 5763 b is about 104 light-years from Earth in the constellation Pisces. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 1,832,160 years to get there.
How long is a year on HIP 5763 b?
One orbit around HIP 5763 takes 30.0 Earth days — short enough that 12 of its years would fit into one Earth year.
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