Key parameters at a glance

A radius of 3.24 Earth radii
A mass of 10.60 Earth masses
Surface gravity around 1.01 g
An orbital period of 5.101 days
Semi-major axis 0.0580 AU
Equilibrium temperature 1,050 K (777 °C)
Distance from Earth 3,445.38 light-years
Earth Similarity Index 0.214
Travel time at Voyager 1 speed 60,759,300 years

Kepler-860 b Planet Profile

Physical Specs

Radius

3.24 R⊕

Radius (Jupiter)

0.289 R♃

Mass

10.60 M⊕

Mass (Jupiter)

0.033 M♃

Density

1.71 g/cm³

Surface Gravity

1.01 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.214

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#320of 1978

top 16.1%

This planet

3.24R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

HD 48948 d 3.24 R⊕ Kepler-742 b 3.24 R⊕ TOI-1230.01 3.24 R⊕

Metric	Earth	Kepler-860 b	Jupiter
Radius (R⊕)	1.00	3.24	11.21
Mass (M⊕)	1.00	10.60	317.83
Density (g/cm³)	5.51	1.71	1.33
Surface Gravity (g)	1.00	1.01	2.53
Insolation (S⊕)	1.00	233.62	0.037

Star Catalogue Identifiers

TIC

TIC 271774166

Gaia DR2

Gaia DR2 2080406364902715776

Gaia DR3

Gaia DR3 2080406364902715776

System

Kepler-860

Percentile among Sub-Neptune cohort

Radius 3.240 R⊕ · percentile 84 / cohort 1978

Mass 10.600 M⊕ · percentile 77 / cohort 1978

Orbital period 5.10 d · percentile 13 / cohort 1946

Distance 1,056.36 pc · percentile 81 / cohort 1975

ESI 0.214 · percentile 9 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

5.101 days

Semi-major axis

0.0580 AU

Eccentricity

0.000

Inclination

89.90 °

Year Length

A year here lasts approximately 5.10 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0580 AU.

Transit Fingerprint

Depth

0.089 %

Duration

2.593 h

Impact parameter b

0.027

Rp / R★

0.027964

Transit midpoint (BJD)

2,455,190.4825

Photometric dip

Transit produces a flux drop of 895 ppm lasting ≈ 2.59 h.

Extended Orbital Architecture

Planet / star radius ratio

0.027964

Semi-major axis / stellar radius

15.435

Impact parameter (b)

0.027

Transit mid-time (BJD)

2,455,190.4825

Angular separation (arcsec)

0.05490

Eq. Temperature

1,050K

(777 °C)

Insolation (S⊕)

233.62

Earth = 1.00

Earth Similarity (ESI)

0.214

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-860

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,836 K — hotter than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.060 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

0.09

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

2.672 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,056.36 parsec

Light-years 3,445.38 ly

V-band magnitude

15.54 mag

Voyager-speed travel 60,759,300 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.918 mas

Total Proper Motion

9.233 mas/yr

PM Right Ascension

-2.62 mas/yr

PM Declination

-8.85 mas/yr

Galactic Cartesian (pc)

x = 0.299 · y = -0.624 · z = 0.722

Equatorial (J2000)

RA 295.57727° · Dec 46.25470°

Galactic ℓ, b

79.496° · 11.183°

Ecliptic λ, β

316.337° · 65.630°

HTM-20 index

-1968578732