GJ 9714 b
GJ 9714 b is a cold gas giant orbiting GJ 9714 in the constellation Microscopium. It lies about 67 light-years from Earth and was discovered in 2022 using the radial velocity method.
Is GJ 9714 b in the Habitable Zone?
The position of GJ 9714 b relative to the habitable zone of GJ 9714 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on GJ 9714 b — one full orbit around GJ 9714 — lasts 19,240.8 Earth days, longer than Jupiter's 12-year orbit. It orbits at an average distance of 12.319 AU. Its orbit is mildly elliptical (eccentricity 0.16).
How Was GJ 9714 b Discovered?
GJ 9714 b was discovered in 2022 using the radial velocity method, with observations from Multiple Observatories.
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 GJ 9714 b?
GJ 9714 b is 66.9 light-years (20.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1960. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 1,177,440 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. GJ 9714 b scores 0.07, ranking #4,887 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: GJ 9714
GJ 9714
- Mass
- 0.67 M☉
Planetary System
GJ 9714 b is the only planet known to orbit GJ 9714 so far.
GJ 9714 b — Complete Data
| Mass | 2,988.54 Earth masses (9.403 Jupiter masses) |
|---|---|
| Orbital period | 19,240.75 days |
| Orbital distance | 12.319 AU |
| Eccentricity | 0.155 |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 66.9 light-years (20.5 parsecs) |
| Constellation | Microscopium |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2023-06-12. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About GJ 9714 b
Is GJ 9714 b habitable?
GJ 9714 b is not known to orbit within the habitable zone of GJ 9714, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is GJ 9714 b?
GJ 9714 b is about 67 light-years from Earth in the constellation Microscopium. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 1,177,440 years to get there.
How long is a year on GJ 9714 b?
One orbit around GJ 9714 takes 19,240.8 Earth days.
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