EPIC 206317286 c
EPIC 206317286 c is a mini-Neptune orbiting EPIC 206317286 in the constellation Aquarius. It lies about 1,025 light-years from Earth and was discovered in 2022 using the transit method.
How Big Is EPIC 206317286 c?
EPIC 206317286 c has a radius of 2.09 times that of Earth.
Is EPIC 206317286 c in the Habitable Zone?
The position of EPIC 206317286 c relative to the habitable zone of EPIC 206317286 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on EPIC 206317286 c — one full orbit around EPIC 206317286 — lasts 17.5 Earth days, shorter than Mercury's 88-day year.
How Was EPIC 206317286 c Discovered?
EPIC 206317286 c was discovered in 2022 using the transit method, with observations from K2.
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 EPIC 206317286 c?
EPIC 206317286 c is 1,025.3 light-years (314.4 parsecs) from Earth. Light arriving here tonight left the planet around the year 1001. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 18,045,280 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. EPIC 206317286 c scores 0.33, ranking #964 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: EPIC 206317286
EPIC 206317286
- Mass
- 0.71 M☉
The EPIC 206317286 Planetary System
EPIC 206317286 c is one of 2 known planets in the EPIC 206317286 system. Its siblings:
- EPIC 206317286 b (Terrestrial)
EPIC 206317286 c — Complete Data
| Radius | 2.094 Earth radii (0.187 Jupiter radii) |
|---|---|
| Orbital period | 17.52 days |
| Earth Similarity Index | 0.33 |
| Distance from Earth | 1,025.3 light-years (314.4 parsecs) |
| Constellation | Aquarius |
| Discovery method | Transit |
| Discovery facility | K2 |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2022-03-16. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About EPIC 206317286 c
Is EPIC 206317286 c habitable?
EPIC 206317286 c is not known to orbit within the habitable zone of EPIC 206317286, and as a mini-Neptune it is an unlikely candidate for life as we know it.
How far away is EPIC 206317286 c?
EPIC 206317286 c is about 1,025 light-years from Earth in the constellation Aquarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 18,045,280 years to get there.
How big is EPIC 206317286 c compared to Earth?
EPIC 206317286 c has 2.09 times the radius of Earth.
How long is a year on EPIC 206317286 c?
One orbit around EPIC 206317286 takes 17.5 Earth days — short enough that 21 of its years would fit into one Earth year.
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