HD 80913 b
HD 80913 b is a exoplanet orbiting HD 80913 in the constellation Chamaeleon. It lies about 200 light-years from Earth and was discovered in 2022 using the radial velocity method.
Is HD 80913 b in the Habitable Zone?
The position of HD 80913 b relative to the habitable zone of HD 80913 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HD 80913 b — one full orbit around HD 80913 — lasts 10,839.8 Earth days, longer than Jupiter's 12-year orbit. It orbits at an average distance of 9.950 AU. Its orbit is highly elliptical (eccentricity 0.31), swinging dramatically closer to and farther from its star.
How Was HD 80913 b Discovered?
HD 80913 b was discovered in 2022 using the radial velocity method, with observations from Multiple Observatories.
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 80913 b?
HD 80913 b is 200.1 light-years (61.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1826. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 3,521,760 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 80913 b scores 0.11, ranking #4,384 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 80913
HD 80913
- Mass
- 1.11 M☉
Planetary System
HD 80913 b is the only planet known to orbit HD 80913 so far.
HD 80913 b — Complete Data
| Mass | 7,505.20 Earth masses (23.614 Jupiter masses) |
|---|---|
| Orbital period | 10,839.83 days |
| Orbital distance | 9.950 AU |
| Eccentricity | 0.313 |
| Earth Similarity Index | 0.11 |
| Distance from Earth | 200.1 light-years (61.4 parsecs) |
| Constellation | Chamaeleon |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2023-06-12. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 80913 b
Is HD 80913 b habitable?
HD 80913 b is not known to orbit within the habitable zone of HD 80913.
How far away is HD 80913 b?
HD 80913 b is about 200 light-years from Earth in the constellation Chamaeleon. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 3,521,760 years to get there.
How long is a year on HD 80913 b?
One orbit around HD 80913 takes 10,839.8 Earth days.
Explore HD 80913 b in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
