Confirmed Exoplanet Discovered 2016

Kepler-718 b

A gas giant orbiting the f-type yellow-white Kepler-718, located approximately 4,247.6 light-years from Earth.

Key parameters at a glance

  • A radius of 16.56 Earth radii
  • An orbital period of 2.052 days
  • Semi-major axis 0.0322 AU
  • Equilibrium temperature 1,497 K (1224 °C)
  • Distance from Earth 4,247.63 light-years
  • Earth Similarity Index 0.023
  • Travel time at Voyager 1 speed 74,906,906 years

Kepler-718 b Planet Profile

Physical Specs

Radius
16.56 R⊕
Radius (Jupiter)
1.477 R♃
Mass
M⊕
Mass (Jupiter)
M♃
Density
g/cm³
Surface Gravity
g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.023
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

#131of 1771

top 7.3%

This planet

16.56R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth Kepler-718 b Jupiter
Radius (R⊕)1.0016.5611.21
Mass (M⊕)1.00317.83
Density (g/cm³)5.511.33
Surface Gravity (g)1.002.53
Insolation (S⊕)1.001,324.200.037

Star Catalogue Identifiers

TIC

TIC 268924036

Gaia DR2

Gaia DR2 2075964612812129792

Gaia DR3

Gaia DR3 2075964612812129792

System

Kepler-718

Percentile among Gas Giant cohort

Radius 16.560 R⊕ · percentile 93 / cohort 1771
Orbital period 2.05 d · percentile 7 / cohort 1533
Distance 1,302.33 pc · percentile 89 / cohort 1759
ESI 0.023 · percentile 0 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
2.052 days
Semi-major axis
0.0322 AU
Eccentricity
0.000
Inclination
86.76 °

Year Length

A year here lasts approximately 2.05 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0322 AU.

Transit Fingerprint

Depth

1.428 %

Duration

2.080 h

Impact parameter b

0.437

Rp / R★

0.116589

Transit midpoint (BJD)

2,455,002.8906

Photometric dip

Transit produces a flux drop of 14,281 ppm lasting ≈ 2.08 h.

Extended Orbital Architecture

Planet / star radius ratio

0.116589

Semi-major axis / stellar radius

7.875

Impact parameter (b)

0.437

Transit mid-time (BJD)

2,455,002.8906

Angular separation (arcsec)

0.02470

Eq. Temperature

1,497K

(1224 °C)

Insolation (S⊕)

1,324.20

Earth = 1.00

Earth Similarity (ESI)

0.023

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

Host System: Kepler-718

Spectral Class

F-type yellow-white

Effective Temperature

6,191 K — hotter than the Sun (5,778 K)

Estimated Age

2.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.300 R☉

Stellar Mass

1.180 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.280 dex

Stellar density

2.085 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,302.33 parsec
Light-years 4,247.63 ly
V-band magnitude
15.40 mag
Voyager-speed travel 74,906,906 yr

Multi-band Host Photometry — 16 bands

9.416.416.35B15.40V15.25Gaia15.26Kepler14.73TESS15.82Sloan g15.20Sloan r15.02Sloan i14.94Sloan z14.01J13.68H13.60K13.63W113.69W212.29W39.41W4

Astrometric Data

Parallax

0.740 mas

Total Proper Motion

10.629 mas/yr

PM Right Ascension

-4.42 mas/yr

PM Declination

-9.67 mas/yr

Galactic Cartesian (pc)

x = 0.358 · y = -0.631 · z = 0.688

Equatorial (J2000)

RA 299.56187° · Dec 43.50352°

Galactic ℓ, b

78.463° · 7.375°

Ecliptic λ, β

319.553° · 61.952°

HTM-20 index

1868632039

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