Kepler-732 c
Kepler-732 c is a super-Earth orbiting Kepler-732 in the constellation Lyra. It lies about 570 light-years from Earth and was discovered in 2016 using the transit method.
How Big Is Kepler-732 c?
Kepler-732 c has a radius of 1.27 times that of Earth.
Is Kepler-732 c in the Habitable Zone?
The position of Kepler-732 c relative to the habitable zone of Kepler-732 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-732: 0.148–0.382 AU (conservative: 0.188–0.363 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 Kepler-732 c — one full orbit around Kepler-732 — lasts just 21.4 hours, shorter than Mercury's 88-day year.
How Was Kepler-732 c Discovered?
Kepler-732 c was discovered in 2016 using the transit method, with observations from Kepler.
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 Kepler-732 c?
Kepler-732 c is 570.2 light-years (174.8 parsecs) from Earth. Light arriving here tonight left the planet around the year 1456. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 10,035,520 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. Kepler-732 c scores 0.29, ranking #1,579 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-732
Kepler-732
- Surface temperature
- 3,631 K (Sun: 5,772 K)
- Mass
- 0.49 M☉
- Radius
- 0.46 R☉
- Age
- 4.5 billion years (Sun: 4.6)
The Kepler-732 Planetary System
Kepler-732 c is one of 2 known planets in the Kepler-732 system. Its siblings:
- Kepler-732 b (Mini Neptune)
Kepler-732 c — Complete Data
| Radius | 1.270 Earth radii (0.113 Jupiter radii) |
|---|---|
| Orbital period | 0.89 days |
| Earth Similarity Index | 0.29 |
| Distance from Earth | 570.2 light-years (174.8 parsecs) |
| Constellation | Lyra |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2016 |
Data: NASA Exoplanet Archive, last updated 2016-05-06. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-732 c
Is Kepler-732 c habitable?
Kepler-732 c is not known to orbit within the habitable zone of Kepler-732, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is Kepler-732 c?
Kepler-732 c is about 570 light-years from Earth in the constellation Lyra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 10,035,520 years to get there.
How big is Kepler-732 c compared to Earth?
Kepler-732 c has 1.27 times the radius of Earth.
How long is a year on Kepler-732 c?
One orbit around Kepler-732 takes 0.9 Earth days — short enough that 409 of its years would fit into one Earth year.
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