EPIC 201427007 b
EPIC 201427007 b is a super-Earth orbiting EPIC 201427007 in the constellation Virgo. It lies about 2,304 light-years from Earth and was discovered in 2021 using the transit method.
How Big Is EPIC 201427007 b?
EPIC 201427007 b has a radius of 1.50 times that of Earth.
Is EPIC 201427007 b in the Habitable Zone?
The position of EPIC 201427007 b relative to the habitable zone of EPIC 201427007 cannot be precisely determined from the available orbital data.
Habitable zone of EPIC 201427007: 0.676–1.600 AU (conservative: 0.857–1.517 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 201427007 b — one full orbit around EPIC 201427007 — lasts just 17.3 hours, shorter than Mercury's 88-day year.
How Was EPIC 201427007 b Discovered?
EPIC 201427007 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 201427007 b?
EPIC 201427007 b is 2,303.9 light-years (706.4 parsecs) from Earth. Light arriving here tonight left the planet about 2,304 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 40,548,640 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 201427007 b scores 0.28, ranking #2,274 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: EPIC 201427007
EPIC 201427007
- Surface temperature
- 5,633 K (Sun: 5,772 K)
- Radius
- 0.94 R☉
Planetary System
EPIC 201427007 b is the only planet known to orbit EPIC 201427007 so far.
EPIC 201427007 b — Complete Data
| Radius | 1.500 Earth radii (0.134 Jupiter radii) |
|---|---|
| Orbital period | 0.72 days |
| Earth Similarity Index | 0.28 |
| Distance from Earth | 2,303.9 light-years (706.4 parsecs) |
| Constellation | Virgo |
| 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 201427007 b
Is EPIC 201427007 b habitable?
EPIC 201427007 b is not known to orbit within the habitable zone of EPIC 201427007, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is EPIC 201427007 b?
EPIC 201427007 b is about 2,304 light-years from Earth in the constellation Virgo. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 40,548,640 years to get there.
How big is EPIC 201427007 b compared to Earth?
EPIC 201427007 b has 1.50 times the radius of Earth.
How long is a year on EPIC 201427007 b?
One orbit around EPIC 201427007 takes 0.7 Earth days — short enough that 507 of its years would fit into one Earth year.
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