CoRoT-32 b
CoRoT-32 b is a hot Jupiter orbiting the G0 VI star CoRoT-32 in the constellation Monoceros. It lies about 1,881 light-years from Earth and was discovered in 2018 using the transit method.
How Big Is CoRoT-32 b?
CoRoT-32 b has a radius of 6.39 times that of Earth, or 0.57 times the radius of Jupiter. Its mass is 47.7 times that of Earth, giving it a density of 1.10 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is CoRoT-32 b in the Habitable Zone?
CoRoT-32 b orbits inside the inner edge of the habitable zone of CoRoT-32. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of CoRoT-32: 0.621–1.455 AU (conservative: 0.786–1.380 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 ›
Temperature on CoRoT-32 b
The equilibrium temperature of CoRoT-32 b is about 938 K (665 °C) — hot enough to melt many metals. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C. It receives 132 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on CoRoT-32 b — one full orbit around CoRoT-32 — lasts 6.72 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.071 AU — closer to its star than Mercury is to the Sun.
How Was CoRoT-32 b Discovered?
CoRoT-32 b was discovered in 2018 using the transit method, with observations from CoRoT.
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 CoRoT-32 b?
CoRoT-32 b is 1,880.9 light-years (576.7 parsecs) from Earth. Light arriving here tonight left the planet about 1,881 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 33,103,840 years to make the journey.
The Host Star: CoRoT-32
CoRoT-32
- Spectral type
- G0 VI
- Surface temperature
- 5,970 K (Sun: 5,772 K)
- Mass
- 1.08 M☉
- Radius
- 0.79 R☉
- Luminosity
- 0.7000 L☉
Planetary System
CoRoT-32 b is the only planet known to orbit CoRoT-32 so far.
CoRoT-32 b — Complete Data
| Radius | 6.389 Earth radii (0.570 Jupiter radii) |
|---|---|
| Mass | 47.67 Earth masses (0.150 Jupiter masses) |
| Density | 1.10 g/cm³ (Earth: 5.51) |
| Orbital period | 6.72 days |
| Orbital distance | 0.071 AU |
| Equilibrium temperature | 938 K (665 °C) |
| Stellar irradiation | 132.26× Earth |
| Distance from Earth | 1,880.9 light-years (576.7 parsecs) |
| Constellation | Monoceros |
| Discovery method | Transit |
| Discovery facility | CoRoT |
| Discovery year | 2018 |
Data: NASA Exoplanet Archive, last updated 2017-09-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About CoRoT-32 b
Is CoRoT-32 b habitable?
No — CoRoT-32 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is CoRoT-32 b?
CoRoT-32 b is about 1,881 light-years from Earth in the constellation Monoceros. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 33,103,840 years to get there.
How big is CoRoT-32 b compared to Earth?
CoRoT-32 b has 6.39 times the radius of Earth and about 47.7 times its mass.
How long is a year on CoRoT-32 b?
One orbit around CoRoT-32 takes 6.7 Earth days — short enough that 54 of its years would fit into one Earth year.
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