HD 214823 b
HD 214823 b is a exoplanet orbiting HD 214823 in the constellation Pegasus. It lies about 331 light-years from Earth and was discovered in 2016 using the radial velocity method.
Is HD 214823 b in the Habitable Zone?
The position of HD 214823 b relative to the habitable zone of HD 214823 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HD 214823 b — one full orbit around HD 214823 — lasts 1,854.8 Earth days, longer than an Earth year. It orbits at an average distance of 3.080 AU. Its orbit is mildly elliptical (eccentricity 0.16).
How Was HD 214823 b Discovered?
HD 214823 b was discovered in 2016 using the radial velocity method, with observations from Haute-Provence 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 214823 b?
HD 214823 b is 330.6 light-years (101.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1696. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 5,818,560 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 214823 b scores 0.35, ranking #785 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 214823
HD 214823 b belongs to a system of 2 stars; it orbits HD 214823.
HD 214823
- Mass
- 1.12 M☉
Planetary System
HD 214823 b is the only planet known to orbit HD 214823 so far.
HD 214823 b — Complete Data
| Mass | 5,914.79 Earth masses (18.610 Jupiter masses) |
|---|---|
| Orbital period | 1,854.84 days |
| Orbital distance | 3.080 AU |
| Eccentricity | 0.161 |
| Earth Similarity Index | 0.35 |
| Distance from Earth | 330.6 light-years (101.4 parsecs) |
| Constellation | Pegasus |
| Discovery method | Radial Velocity |
| Discovery facility | Haute-Provence Observatory |
| Discovery year | 2016 |
Data: NASA Exoplanet Archive, last updated 2023-06-12. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 214823 b
Is HD 214823 b habitable?
HD 214823 b is not known to orbit within the habitable zone of HD 214823.
How far away is HD 214823 b?
HD 214823 b is about 331 light-years from Earth in the constellation Pegasus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 5,818,560 years to get there.
How long is a year on HD 214823 b?
One orbit around HD 214823 takes 1,854.8 Earth days.
Explore HD 214823 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.
