WASP-132 d
WASP-132 d is a cold gas giant orbiting the K4 V star WASP-132 in the constellation Lupus. It lies about 401 light-years from Earth and was discovered in 2024 using the radial velocity method.
Is WASP-132 d in the Habitable Zone?
WASP-132 d orbits beyond the outer edge of the habitable zone of WASP-132. At that distance, any surface water would almost certainly be frozen.
Habitable zone of WASP-132: 0.410–1.003 AU (conservative: 0.519–0.951 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on WASP-132 d
The equilibrium temperature of WASP-132 d is about 107 K (-166 °C) — well below freezing. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C. It receives 0.04 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on WASP-132 d — one full orbit around WASP-132 — lasts 1,816.6 Earth days, longer than an Earth year. It orbits at an average distance of 2.710 AU. Its orbit is mildly elliptical (eccentricity 0.12).
How Was WASP-132 d Discovered?
WASP-132 d was discovered in 2024 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 WASP-132 d?
WASP-132 d is 400.9 light-years (122.9 parsecs) from Earth. Light arriving here tonight left the planet around the year 1626. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 7,055,840 years to make the journey.
The Host Star: WASP-132
WASP-132
- Spectral type
- K4 V
- Surface temperature
- 4,686 K (Sun: 5,772 K)
- Mass
- 0.79 M☉
- Radius
- 0.76 R☉
- Luminosity
- 0.2660 L☉
- Age
- 7.2 billion years (Sun: 4.6)
The WASP-132 Planetary System
WASP-132 d is one of 3 known planets in the WASP-132 system. Its siblings:
- WASP-132 b (Hot Jupiter)
- WASP-132 c (Super Earth)
WASP-132 d — Complete Data
| Mass (best estimate) | 1,639.99 Earth masses |
|---|---|
| Orbital period | 1,816.60 days |
| Orbital distance | 2.710 AU |
| Eccentricity | 0.120 |
| Equilibrium temperature | 107 K (-166 °C) |
| Stellar irradiation | 0.04× Earth |
| Distance from Earth | 400.9 light-years (122.9 parsecs) |
| Constellation | Lupus |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2025-01-29. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About WASP-132 d
Is WASP-132 d habitable?
No — WASP-132 d orbits outside the habitable zone of WASP-132 and is likely too cold for liquid water on its surface.
How far away is WASP-132 d?
WASP-132 d is about 401 light-years from Earth in the constellation Lupus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 7,055,840 years to get there.
How long is a year on WASP-132 d?
One orbit around WASP-132 takes 1,816.6 Earth days.
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