HD 80883 b
HD 80883 b is a cold gas giant orbiting HD 80883 in the constellation Carina. It lies about 113 light-years from Earth and was discovered in 2022 using the radial velocity method.
Is HD 80883 b in the Habitable Zone?
The position of HD 80883 b relative to the habitable zone of HD 80883 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HD 80883 b — one full orbit around HD 80883 — lasts 6,383.8 Earth days, longer than Jupiter's 12-year orbit. It orbits at an average distance of 6.462 AU. Its orbit is mildly elliptical (eccentricity 0.20).
How Was HD 80883 b Discovered?
HD 80883 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 80883 b?
HD 80883 b is 112.9 light-years (34.6 parsecs) from Earth. Light arriving here tonight left the planet around the year 1914. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 1,987,040 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 80883 b scores 0.08, ranking #4,648 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 80883
HD 80883
- Mass
- 0.88 M☉
Planetary System
HD 80883 b is the only planet known to orbit HD 80883 so far.
HD 80883 b — Complete Data
| Mass | 1,748.06 Earth masses (5.500 Jupiter masses) |
|---|---|
| Orbital period | 6,383.78 days |
| Orbital distance | 6.462 AU |
| Eccentricity | 0.203 |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 112.9 light-years (34.6 parsecs) |
| Constellation | Carina |
| 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 80883 b
Is HD 80883 b habitable?
HD 80883 b is not known to orbit within the habitable zone of HD 80883, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is HD 80883 b?
HD 80883 b is about 113 light-years from Earth in the constellation Carina. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 1,987,040 years to get there.
How long is a year on HD 80883 b?
One orbit around HD 80883 takes 6,383.8 Earth days.
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