EPIC 220492298 b
EPIC 220492298 b is a terrestrial planet orbiting EPIC 220492298 in the constellation Pisces. It lies about 2,037 light-years from Earth and was discovered in 2021 using the transit method.
How Big Is EPIC 220492298 b?
EPIC 220492298 b has a radius of 0.99 times that of Earth.
Is EPIC 220492298 b in the Habitable Zone?
The position of EPIC 220492298 b relative to the habitable zone of EPIC 220492298 cannot be precisely determined from the available orbital data.
Habitable zone of EPIC 220492298: 0.638–1.509 AU (conservative: 0.808–1.431 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 220492298 b — one full orbit around EPIC 220492298 — lasts just 18.3 hours, shorter than Mercury's 88-day year.
How Was EPIC 220492298 b Discovered?
EPIC 220492298 b 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 220492298 b?
EPIC 220492298 b is 2,036.9 light-years (624.5 parsecs) from Earth. Light arriving here tonight left the planet about 2,037 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 35,849,440 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 220492298 b scores 0.29, ranking #1,658 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: EPIC 220492298
EPIC 220492298
- Surface temperature
- 5,620 K (Sun: 5,772 K)
- Radius
- 0.89 R☉
Planetary System
EPIC 220492298 b is the only planet known to orbit EPIC 220492298 so far.
EPIC 220492298 b — Complete Data
| Radius | 0.990 Earth radii (0.088 Jupiter radii) |
|---|---|
| Orbital period | 0.76 days |
| Earth Similarity Index | 0.29 |
| Distance from Earth | 2,036.9 light-years (624.5 parsecs) |
| Constellation | Pisces |
| 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 220492298 b
Is EPIC 220492298 b habitable?
EPIC 220492298 b is not known to orbit within the habitable zone of EPIC 220492298, and as a terrestrial planet it is an unlikely candidate for life as we know it.
How far away is EPIC 220492298 b?
EPIC 220492298 b is about 2,037 light-years from Earth in the constellation Pisces. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 35,849,440 years to get there.
How big is EPIC 220492298 b compared to Earth?
EPIC 220492298 b has 0.99 times the radius of Earth.
How long is a year on EPIC 220492298 b?
One orbit around EPIC 220492298 takes 0.8 Earth days — short enough that 479 of its years would fit into one Earth year.
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