14 And b
14 And b is a cold gas giant orbiting the K0 III star 14 And in the constellation Andromeda. It lies about 246 light-years from Earth and was discovered in 2008 using the radial velocity method.
Is 14 And b in the Habitable Zone?
14 And b orbits inside the inner edge of the habitable zone of 14 And. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of 14 And: 6.548–15.904 AU (conservative: 8.294–15.079 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on 14 And b — one full orbit around 14 And — lasts 186.8 Earth days, between the years of Mercury (88 days) and Earth (365 days). It orbits at an average distance of 0.775 AU — comparable to the inner Solar System.
How Was 14 And b Discovered?
14 And b was discovered in 2008 using the radial velocity method, with observations from Okayama Astrophysical 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 14 And b?
14 And b is 246.0 light-years (75.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1780. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 4,329,600 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. 14 And b scores 0.08, ranking #4,727 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: 14 And
14 And
- Spectral type
- K0 III
- Surface temperature
- 4,888 K (Sun: 5,772 K)
- Mass
- 1.78 M☉
- Radius
- 11.55 R☉
- Luminosity
- 69.1704 L☉
Planetary System
14 And b is the only planet known to orbit 14 And so far.
14 And b — Complete Data
| Mass (best estimate) | 1,131.15 Earth masses |
|---|---|
| Orbital period | 186.76 days |
| Orbital distance | 0.775 AU |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 246.0 light-years (75.4 parsecs) |
| Constellation | Andromeda |
| Discovery method | Radial Velocity |
| Discovery facility | Okayama Astrophysical Observatory |
| Discovery year | 2008 |
Data: NASA Exoplanet Archive, last updated 2023-09-19. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About 14 And b
Is 14 And b habitable?
No — 14 And b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is 14 And b?
14 And b is about 246 light-years from Earth in the constellation Andromeda. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 4,329,600 years to get there.
How long is a year on 14 And b?
One orbit around 14 And takes 186.8 Earth days.
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