BD-10 3166 b
BD-10 3166 b is a hot Jupiter orbiting BD-10 3166 in the constellation Crater. It lies about 275 light-years from Earth and was discovered in 2000 using the radial velocity method.
Is BD-10 3166 b in the Habitable Zone?
BD-10 3166 b orbits inside the inner edge of the habitable zone of BD-10 3166. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of BD-10 3166: 0.608–1.450 AU (conservative: 0.771–1.375 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Orbit and Year Length
A year on BD-10 3166 b — one full orbit around BD-10 3166 — lasts 3.49 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.040 AU — closer to its star than Mercury is to the Sun. Its orbit is nearly circular (eccentricity 0.020).
How Was BD-10 3166 b Discovered?
BD-10 3166 b was discovered in 2000 using the radial velocity method, with observations from W. M. Keck 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 BD-10 3166 b?
BD-10 3166 b is 275.3 light-years (84.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1751. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 4,845,280 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. BD-10 3166 b scores 0.07, ranking #5,018 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: BD-10 3166
BD-10 3166
- Surface temperature
- 5,393 K (Sun: 5,772 K)
- Mass
- 1.47 M☉
- Radius
- 0.91 R☉
Planetary System
BD-10 3166 b is the only planet known to orbit BD-10 3166 so far.
BD-10 3166 b — Complete Data
| Mass (best estimate) | 187.52 Earth masses |
|---|---|
| Orbital period | 3.49 days |
| Orbital distance | 0.040 AU |
| Eccentricity | 0.020 |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 275.3 light-years (84.4 parsecs) |
| Constellation | Crater |
| Discovery method | Radial Velocity |
| Discovery facility | W. M. Keck Observatory |
| Discovery year | 2000 |
Data: NASA Exoplanet Archive, last updated 2018-09-04. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About BD-10 3166 b
Is BD-10 3166 b habitable?
No — BD-10 3166 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is BD-10 3166 b?
BD-10 3166 b is about 275 light-years from Earth in the constellation Crater. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 4,845,280 years to get there.
How long is a year on BD-10 3166 b?
One orbit around BD-10 3166 takes 3.5 Earth days — short enough that 105 of its years would fit into one Earth year.
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