Kepler-324 e
Kepler-324 e is a mini-Neptune orbiting Kepler-324 in the constellation Draco. It lies about 1,636 light-years from Earth and was discovered in 2021 using the transit method.
How Big Is Kepler-324 e?
Kepler-324 e has a radius of 2.04 times that of Earth.
Is Kepler-324 e in the Habitable Zone?
The position of Kepler-324 e relative to the habitable zone of Kepler-324 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-324: 0.527–1.264 AU (conservative: 0.667–1.198 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-324 e — one full orbit around Kepler-324 — lasts 14.0 Earth days, shorter than Mercury's 88-day year.
How Was Kepler-324 e Discovered?
Kepler-324 e was discovered in 2021 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-324 e?
Kepler-324 e is 1,635.9 light-years (501.6 parsecs) from Earth. Light arriving here tonight left the planet about 1,636 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 28,791,840 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-324 e scores 0.28, ranking #2,137 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-324
Kepler-324
- Surface temperature
- 5,194 K (Sun: 5,772 K)
- Radius
- 0.84 R☉
The Kepler-324 Planetary System
Kepler-324 e is one of 4 known planets in the Kepler-324 system. Its siblings:
- KOI-1831 d (Terrestrial)
- Kepler-324 b (Terrestrial)
- Kepler-324 c (Sub Neptune)
Kepler-324 e — Complete Data
| Radius | 2.039 Earth radii (0.182 Jupiter radii) |
|---|---|
| Orbital period | 13.98 days |
| Earth Similarity Index | 0.28 |
| Distance from Earth | 1,635.9 light-years (501.6 parsecs) |
| Constellation | Draco |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2021 |
Data: NASA Exoplanet Archive, last updated 2021-12-05. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-324 e
Is Kepler-324 e habitable?
Kepler-324 e is not known to orbit within the habitable zone of Kepler-324, and as a mini-Neptune it is an unlikely candidate for life as we know it.
How far away is Kepler-324 e?
Kepler-324 e is about 1,636 light-years from Earth in the constellation Draco. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 28,791,840 years to get there.
How big is Kepler-324 e compared to Earth?
Kepler-324 e has 2.04 times the radius of Earth.
How long is a year on Kepler-324 e?
One orbit around Kepler-324 takes 14.0 Earth days — short enough that 26 of its years would fit into one Earth year.
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