Key parameters at a glance

A radius of 4.02 Earth radii
A mass of 15.23 Earth masses
Surface gravity around 0.94 g
An orbital period of 9.797 days
Semi-major axis 0.0883 AU
Equilibrium temperature 912 K (639 °C)
Distance from Earth 757.01 light-years
Earth Similarity Index 0.227
Travel time at Voyager 1 speed 13,349,837 years

1 sibling around EPIC 201595106

K2-360 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
EPIC 201595106 b	Super-Earth	1.57	7.67	0.877	2,038	2021
K2-360 c this	Neptune-like	4.02	15.23	9.797	912	2024

K2-360 c Planet Profile

Physical Specs

Radius

4.02 R⊕

Radius (Jupiter)

0.359 R♃

Mass

15.23 M⊕

Mass (Jupiter)

0.048 M♃

Density

1.29 g/cm³

Surface Gravity

0.94 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.227

HZ Position Inner

Controversial No

Discovery

Year 2024

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#565of 574

top 98.3%

This planet

4.02R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

Kepler-590 b 4.02 R⊕ Kepler-33 e 4.02 R⊕ Kepler-359 d 4.01 R⊕

Metric	Earth	K2-360 c	Jupiter
Radius (R⊕)	1.00	4.02	11.21
Mass (M⊕)	1.00	15.23	317.83
Density (g/cm³)	5.51	1.29	1.33
Surface Gravity (g)	1.00	0.94	2.53
Insolation (S⊕)	1.00	115.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	15.230 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 397052808

Gaia DR2

Gaia DR2 3701123406596146048

Gaia DR3

Gaia DR3 3701123406596146048

System

EPIC 201595106

Percentile among Neptune-like cohort

Radius 4.020 R⊕ · percentile 1 / cohort 574

Mass 15.230 M⊕ · percentile 8 / cohort 574

Orbital period 9.80 d · percentile 36 / cohort 524

Distance 232.10 pc · percentile 42 / cohort 572

ESI 0.227 · percentile 34 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

9.797 days

Semi-major axis

0.0883 AU

Eccentricity

0.110

Inclination

— °

Year Length

A year here lasts approximately 9.80 Earth days (2.7% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0883 AU.

Eq. Temperature

912K

(639 °C)

Insolation (S⊕)

115.00

Earth = 1.00

Earth Similarity (ESI)

0.227

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Livingston et al. 2024

Instrument

Multiple Instruments

Publication

2024-11

Observation locale

Ground

Discovery cohort

Planets confirmed in 2024 at Multiple Observatories (12 shown).

HD 134606 e · Super-Earth Kepler-51 e · Sub-Neptune HD 134606 f · Sub-Neptune HD 134606 b · Sub-Neptune Teegarden's Star d · Rocky Terrestrial HD 134606 c · Sub-Neptune HD 104067 c · Sub-Neptune GJ 1289 b · Sub-Neptune TOI-4562 c · Gas Giant HD 222237 b · Gas Giant CI Tau c · Gas Giant HD 75898 c · Gas Giant

Host System: EPIC 201595106

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,679 K — cooler than the Sun (5,778 K)

Estimated Age

6.00 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.980 R☉

Stellar Mass

0.958 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.435 dex

Stellar density

1.475 g/cm³

Rotational v·sin i

2.50 km/s

Rotation period

28.00 days

Metallicity ratio

[Fe/H]

Distance

232.10 parsec

Light-years 757.01 ly

V-band magnitude

11.75 mag

Voyager-speed travel 13,349,837 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

4.280 mas

Total Proper Motion

25.002 mas/yr

PM Right Ascension

6.10 mas/yr

PM Declination

-24.25 mas/yr

Galactic Cartesian (pc)

x = -0.997 · y = -0.065 · z = 0.034

Equatorial (J2000)

RA 183.72036° · Dec 1.96817°

Galactic ℓ, b

282.199° · 63.359°

Ecliptic λ, β

182.628° · 3.285°

HTM-20 index

-1494277308