Key parameters at a glance

A radius of 3.01 Earth radii
A mass of 9.32 Earth masses
Surface gravity around 1.03 g
An orbital period of 12.394 days
Semi-major axis 0.0983 AU
Equilibrium temperature 677 K (404 °C)
Distance from Earth 3,007.95 light-years
Earth Similarity Index 0.348
Travel time at Voyager 1 speed 53,045,268 years

Kepler-679 b Planet Profile

Physical Specs

Radius

3.01 R⊕

Radius (Jupiter)

0.269 R♃

Mass

9.32 M⊕

Mass (Jupiter)

0.029 M♃

Density

1.88 g/cm³

Surface Gravity

1.03 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.348

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

#509of 1978

top 25.7%

This planet

3.01R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1056 b 3.01 R⊕ Kepler-1036 b 3.01 R⊕ Kepler-414 c 3.01 R⊕

Metric	Earth	Kepler-679 b	Jupiter
Radius (R⊕)	1.00	3.01	11.21
Mass (M⊕)	1.00	9.32	317.83
Density (g/cm³)	5.51	1.88	1.33
Surface Gravity (g)	1.00	1.03	2.53
Insolation (S⊕)	1.00	56.00	0.037

Star Catalogue Identifiers

TIC

TIC 27766596

Gaia DR2

Gaia DR2 2135356142125982464

Gaia DR3

Gaia DR3 2135356142125982464

System

Kepler-679

Percentile among Sub-Neptune cohort

Radius 3.010 R⊕ · percentile 74 / cohort 1978

Mass 9.320 M⊕ · percentile 68 / cohort 1978

Orbital period 12.39 d · percentile 43 / cohort 1946

Distance 922.24 pc · percentile 73 / cohort 1975

ESI 0.348 · percentile 40 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

12.394 days

Semi-major axis

0.0983 AU

Eccentricity

0.000

Inclination

86.13 °

Year Length

A year here lasts approximately 12.39 Earth days (3.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0983 AU.

Transit Fingerprint

Depth

0.092 %

Duration

3.722 h

Impact parameter b

0.821

Rp / R★

0.032709

Transit midpoint (BJD)

2,455,011.7457

Photometric dip

Transit produces a flux drop of 917 ppm lasting ≈ 3.72 h.

Extended Orbital Architecture

Planet / star radius ratio

0.032709

Semi-major axis / stellar radius

13.070

Impact parameter (b)

0.821

Transit mid-time (BJD)

2,455,011.7457

Angular separation (arcsec)

0.10700

Eq. Temperature

677K

(404 °C)

Insolation (S⊕)

56.00

Earth = 1.00

Earth Similarity (ESI)

0.348

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-679

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,403 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.840 R☉

Stellar Mass

0.870 M☉

Metallicity [Fe/H]

-0.09

Extended Stellar Properties

Surface gravity (log g)

4.540 dex

Stellar density

0.499 g/cm³

Metallicity ratio

[Fe/H]

Distance

922.24 parsec

Light-years 3,007.95 ly

V-band magnitude

15.77 mag

Voyager-speed travel 53,045,268 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.056 mas

Total Proper Motion

5.394 mas/yr

PM Right Ascension

-0.64 mas/yr

PM Declination

5.36 mas/yr

Galactic Cartesian (pc)

x = 0.279 · y = -0.571 · z = 0.772

Equatorial (J2000)

RA 296.02134° · Dec 50.56780°

Galactic ℓ, b

83.547° · 12.913°

Ecliptic λ, β

322.157° · 69.339°

HTM-20 index

-250024745