Key parameters at a glance

A radius of 7.37 Earth radii
A mass of 42.60 Earth masses
Surface gravity around 0.78 g
An orbital period of 12.612 days
Semi-major axis 0.1058 AU
Equilibrium temperature 753 K (480 °C)
Distance from Earth 6,455.44 light-years
Earth Similarity Index 0.209
Travel time at Voyager 1 speed 113,841,724 years

Kepler-682 b Planet Profile

Physical Specs

Radius

7.37 R⊕

Radius (Jupiter)

0.658 R♃

Mass

42.60 M⊕

Mass (Jupiter)

0.134 M♃

Density

0.59 g/cm³

Surface Gravity

0.78 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.209

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

#182of 574

top 31.5%

This planet

7.37R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

HD 89345 b 7.40 R⊕ KMT-2025-BLG-1616L b 7.34 R⊕ K2-387 b 7.32 R⊕

Metric	Earth	Kepler-682 b	Jupiter
Radius (R⊕)	1.00	7.37	11.21
Mass (M⊕)	1.00	42.60	317.83
Density (g/cm³)	5.51	0.59	1.33
Surface Gravity (g)	1.00	0.78	2.53
Insolation (S⊕)	1.00	306.10	0.037

Star Catalogue Identifiers

TIC

TIC 299161524

Gaia DR2

Gaia DR2 2133476080319167104

Gaia DR3

Gaia DR3 2133476080319167104

System

Kepler-682

Percentile among Neptune-like cohort

Radius 7.370 R⊕ · percentile 68 / cohort 574

Mass 42.600 M⊕ · percentile 65 / cohort 574

Orbital period 12.61 d · percentile 42 / cohort 524

Distance 1,979.25 pc · percentile 89 / cohort 572

ESI 0.209 · percentile 29 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

12.612 days

Semi-major axis

0.1058 AU

Eccentricity

0.000

Inclination

88.17 °

Year Length

A year here lasts approximately 12.61 Earth days (3.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1058 AU.

Transit Fingerprint

Depth

0.611 %

Duration

5.164 h

Impact parameter b

0.541

Rp / R★

0.076360

Transit midpoint (BJD)

2,455,013.8924

Photometric dip

Transit produces a flux drop of 6,106 ppm lasting ≈ 5.16 h.

Extended Orbital Architecture

Planet / star radius ratio

0.076360

Semi-major axis / stellar radius

16.800

Impact parameter (b)

0.541

Transit mid-time (BJD)

2,455,013.8924

Angular separation (arcsec)

0.05350

Eq. Temperature

753K

(480 °C)

Insolation (S⊕)

306.10

Earth = 1.00

Earth Similarity (ESI)

0.209

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

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-682

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,559 K — cooler than the Sun (5,778 K)

Estimated Age

3.98 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.890 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

-0.05

Extended Stellar Properties

Surface gravity (log g)

4.510 dex

Stellar density

0.624 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,979.25 parsec

Light-years 6,455.44 ly

V-band magnitude

15.56 mag

Voyager-speed travel 113,841,724 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.476 mas

Total Proper Motion

9.460 mas/yr

PM Right Ascension

-4.78 mas/yr

PM Declination

-8.16 mas/yr

Galactic Cartesian (pc)

x = 0.203 · y = -0.585 · z = 0.785

Equatorial (J2000)

RA 289.11222° · Dec 51.73736°

Galactic ℓ, b

82.775° · 17.338°

Ecliptic λ, β

312.081° · 72.391°

HTM-20 index

31185644