EPIC 206042996 c
EPIC 206042996 c is a terrestrial planet orbiting EPIC 206042996 in the constellation Aquarius. It lies about 1,474 light-years from Earth and was discovered in 2021 using the transit method.
How Big Is EPIC 206042996 c?
EPIC 206042996 c has a radius of 1.20 times that of Earth.
Is EPIC 206042996 c in the Habitable Zone?
The position of EPIC 206042996 c relative to the habitable zone of EPIC 206042996 cannot be precisely determined from the available orbital data.
Habitable zone of EPIC 206042996: 0.205–0.516 AU (conservative: 0.260–0.489 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 EPIC 206042996 c — one full orbit around EPIC 206042996 — lasts just 8.5 hours, shorter than Mercury's 88-day year.
How Was EPIC 206042996 c Discovered?
EPIC 206042996 c was discovered in 2021 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 206042996 c?
EPIC 206042996 c is 1,473.5 light-years (451.8 parsecs) from Earth. Light arriving here tonight left the planet about 1,474 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 25,933,600 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 206042996 c scores 0.29, ranking #1,805 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: EPIC 206042996
EPIC 206042996
- Surface temperature
- 4,114 K (Sun: 5,772 K)
- Radius
- 0.50 R☉
The EPIC 206042996 Planetary System
EPIC 206042996 c is one of 2 known planets in the EPIC 206042996 system. Its siblings:
- EPIC 206042996 b (Super Earth)
EPIC 206042996 c — Complete Data
| Radius | 1.200 Earth radii (0.107 Jupiter radii) |
|---|---|
| Orbital period | 0.35 days |
| Earth Similarity Index | 0.29 |
| Distance from Earth | 1,473.5 light-years (451.8 parsecs) |
| Constellation | Aquarius |
| Discovery method | Transit |
| Discovery facility | K2 |
| Discovery year | 2021 |
Data: NASA Exoplanet Archive, last updated 2021-10-25. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About EPIC 206042996 c
Is EPIC 206042996 c habitable?
EPIC 206042996 c is not known to orbit within the habitable zone of EPIC 206042996, and as a terrestrial planet it is an unlikely candidate for life as we know it.
How far away is EPIC 206042996 c?
EPIC 206042996 c is about 1,474 light-years from Earth in the constellation Aquarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 25,933,600 years to get there.
How big is EPIC 206042996 c compared to Earth?
EPIC 206042996 c has 1.20 times the radius of Earth.
How long is a year on EPIC 206042996 c?
One orbit around EPIC 206042996 takes 0.4 Earth days — short enough that 1,029 of its years would fit into one Earth year.
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