HD 114082 b
HD 114082 b is a cold gas giant orbiting the F3 V star HD 114082 in the constellation Centaurus. It lies about 311 light-years from Earth and was discovered in 2022 using the radial velocity method.
How Big Is HD 114082 b?
HD 114082 b has a radius of 11.21 times that of Earth, or 1.00 times the radius of Jupiter. Its mass is 2,543 times that of Earth.
Is HD 114082 b in the Habitable Zone?
HD 114082 b orbits inside the inner edge of the habitable zone of HD 114082. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of HD 114082: 1.394–3.229 AU (conservative: 1.766–3.062 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Orbit and Year Length
A year on HD 114082 b — one full orbit around HD 114082 — lasts 109.8 Earth days, between the years of Mercury (88 days) and Earth (365 days). It orbits at an average distance of 0.511 AU — comparable to the inner Solar System. Its orbit is highly elliptical (eccentricity 0.40), swinging dramatically closer to and farther from its star.
How Was HD 114082 b Discovered?
HD 114082 b was discovered in 2022 using the radial velocity method, with observations from La Silla 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 114082 b?
HD 114082 b is 311.1 light-years (95.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1715. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 5,475,360 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 114082 b scores 0.14, ranking #4,251 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 114082
HD 114082
- Spectral type
- F3 V
- Surface temperature
- 6,651 K (Sun: 5,772 K)
- Mass
- 1.47 M☉
- Radius
- 1.49 R☉
- Luminosity
- 3.8300 L☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
HD 114082 b is the only planet known to orbit HD 114082 so far.
HD 114082 b — Complete Data
| Radius | 11.209 Earth radii (1.000 Jupiter radii) |
|---|---|
| Mass | 2,542.63 Earth masses (8.000 Jupiter masses) |
| Orbital period | 109.75 days |
| Orbital distance | 0.511 AU |
| Eccentricity | 0.395 |
| Earth Similarity Index | 0.14 |
| Distance from Earth | 311.1 light-years (95.4 parsecs) |
| Constellation | Centaurus |
| Discovery method | Radial Velocity |
| Discovery facility | La Silla Observatory |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2022-11-29. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 114082 b
Is HD 114082 b habitable?
No — HD 114082 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is HD 114082 b?
HD 114082 b is about 311 light-years from Earth in the constellation Centaurus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 5,475,360 years to get there.
How big is HD 114082 b compared to Earth?
HD 114082 b has 11.21 times the radius of Earth and about 2,543 times its mass.
How long is a year on HD 114082 b?
One orbit around HD 114082 takes 109.8 Earth days.
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