WASP-94 A b
WASP-94 A b is a hot Jupiter orbiting WASP-94 A in the constellation Microscopium. It lies about 689 light-years from Earth and was discovered in 2014 using the transit method.
How Big Is WASP-94 A b?
WASP-94 A b has a radius of 17.71 times that of Earth, or 1.58 times the radius of Jupiter. Its mass is 159 times that of Earth.
Is WASP-94 A b in the Habitable Zone?
The position of WASP-94 A b relative to the habitable zone of WASP-94 A cannot be precisely determined from the available orbital data.
Habitable zone of WASP-94 A: 1.237–2.887 AU (conservative: 1.566–2.737 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 WASP-94 A b — one full orbit around WASP-94 A — lasts 3.95 Earth days, shorter than Mercury's 88-day year.
How Was WASP-94 A b Discovered?
WASP-94 A b was discovered in 2014 using the transit method, with observations from SuperWASP.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is WASP-94 A b?
WASP-94 A b is 688.9 light-years (211.2 parsecs) from Earth. Light arriving here tonight left the planet around the year 1338. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 12,124,640 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. WASP-94 A b scores 0.05, ranking #5,252 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: WASP-94 A
WASP-94 A b belongs to a system of 2 stars; it orbits WASP-94 A.
WASP-94 A
- Surface temperature
- 6,170 K (Sun: 5,772 K)
- Mass
- 1.67 M☉
- Radius
- 1.48 R☉
Planetary System
WASP-94 A b is the only planet known to orbit WASP-94 A so far.
WASP-94 A b — Complete Data
| Radius | 17.710 Earth radii (1.580 Jupiter radii) |
|---|---|
| Mass | 158.92 Earth masses (0.500 Jupiter masses) |
| Orbital period | 3.95 days |
| Earth Similarity Index | 0.05 |
| Distance from Earth | 688.9 light-years (211.2 parsecs) |
| Constellation | Microscopium |
| Discovery method | Transit |
| Discovery facility | SuperWASP |
| Discovery year | 2014 |
Data: NASA Exoplanet Archive, last updated 2018-04-25. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About WASP-94 A b
Is WASP-94 A b habitable?
WASP-94 A b is not known to orbit within the habitable zone of WASP-94 A, and as a hot Jupiter it is an unlikely candidate for life as we know it.
How far away is WASP-94 A b?
WASP-94 A b is about 689 light-years from Earth in the constellation Microscopium. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 12,124,640 years to get there.
How big is WASP-94 A b compared to Earth?
WASP-94 A b has 17.71 times the radius of Earth and about 159 times its mass.
How long is a year on WASP-94 A b?
One orbit around WASP-94 A takes 4.0 Earth days — short enough that 92 of its years would fit into one Earth year.
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