HD 4113 b
HD 4113 b is a cold gas giant orbiting HD 4113 in the constellation Sculptor. It lies about 137 light-years from Earth and was discovered in 2007 using the radial velocity method.
Is HD 4113 b in the Habitable Zone?
The position of HD 4113 b relative to the habitable zone of HD 4113 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HD 4113 b — one full orbit around HD 4113 — lasts 526.5 Earth days, longer than an Earth year. It orbits at an average distance of 1.280 AU. Its orbit is highly elliptical (eccentricity 0.90), swinging dramatically closer to and farther from its star.
How Was HD 4113 b Discovered?
HD 4113 b was discovered in 2007 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 4113 b?
HD 4113 b is 136.6 light-years (41.9 parsecs) from Earth. Light arriving here tonight left the planet around the year 1890. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 2,404,160 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. HD 4113 b scores 0.36, ranking #677 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 4113
HD 4113 b belongs to a system of 3 stars; it orbits HD 4113.
HD 4113
- Mass
- 1.01 M☉
Planetary System
HD 4113 b is the only planet known to orbit HD 4113 so far.
HD 4113 b — Complete Data
| Mass (best estimate) | 541.26 Earth masses |
|---|---|
| Orbital period | 526.52 days |
| Orbital distance | 1.280 AU |
| Eccentricity | 0.899 |
| Earth Similarity Index | 0.36 |
| Distance from Earth | 136.6 light-years (41.9 parsecs) |
| Constellation | Sculptor |
| Discovery method | Radial Velocity |
| Discovery facility | La Silla Observatory |
| Discovery year | 2007 |
Data: NASA Exoplanet Archive, last updated 2023-06-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 4113 b
Is HD 4113 b habitable?
HD 4113 b is not known to orbit within the habitable zone of HD 4113, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is HD 4113 b?
HD 4113 b is about 137 light-years from Earth in the constellation Sculptor. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 2,404,160 years to get there.
How long is a year on HD 4113 b?
One orbit around HD 4113 takes 526.5 Earth days.
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