K2-360 c
K2-360 c is a Neptune-like planet orbiting EPIC 201595106 in the constellation Virgo. It lies about 757 light-years from Earth and was discovered in 2024 using the radial velocity method.
Is K2-360 c in the Habitable Zone?
K2-360 c orbits inside the inner edge of the habitable zone of EPIC 201595106. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of EPIC 201595106: 0.713–1.685 AU (conservative: 0.904–1.598 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on K2-360 c
The equilibrium temperature of K2-360 c is about 912 K (639 °C) — hot enough to melt many metals. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C. It receives 115 times the stellar energy that Earth gets from the Sun.
Orbit and Year Length
A year on K2-360 c — one full orbit around EPIC 201595106 — lasts 9.80 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.088 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.11).
How Was K2-360 c Discovered?
K2-360 c was discovered in 2024 using the radial velocity method, with observations from Multiple Observatories.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
How Far Away Is K2-360 c?
K2-360 c is 757.0 light-years (232.1 parsecs) from Earth. Light arriving here tonight left the planet around the year 1269. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 13,323,200 years to make the journey.
The Host Star: EPIC 201595106
EPIC 201595106
- Surface temperature
- 5,679 K (Sun: 5,772 K)
- Mass
- 0.96 M☉
- Radius
- 0.98 R☉
- Luminosity
- 0.8930 L☉
- Age
- 6.0 billion years (Sun: 4.6)
The EPIC 201595106 Planetary System
K2-360 c is one of 2 known planets in the EPIC 201595106 system. Its siblings:
- EPIC 201595106 b (Lava World)
K2-360 c — Complete Data
| Mass (best estimate) | 15.23 Earth masses |
|---|---|
| Orbital period | 9.80 days |
| Orbital distance | 0.088 AU |
| Eccentricity | 0.110 |
| Equilibrium temperature | 912 K (639 °C) |
| Stellar irradiation | 115.00× Earth |
| Distance from Earth | 757.0 light-years (232.1 parsecs) |
| Constellation | Virgo |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2025-01-29. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About K2-360 c
Is K2-360 c habitable?
No — K2-360 c orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is K2-360 c?
K2-360 c is about 757 light-years from Earth in the constellation Virgo. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 13,323,200 years to get there.
How long is a year on K2-360 c?
One orbit around EPIC 201595106 takes 9.8 Earth days — short enough that 37 of its years would fit into one Earth year.
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