Confirmed Exoplanet Discovered 2016

Kepler-624 b

A sub-neptune orbiting the f-type yellow-white Kepler-624, located approximately 2,440.3 light-years from Earth.

Key parameters at a glance

  • A radius of 2.31 Earth radii
  • A mass of 5.95 Earth masses
  • Surface gravity around 1.12 g
  • An orbital period of 14.586 days
  • Semi-major axis 0.1164 AU
  • Equilibrium temperature 852 K (579 °C)
  • Distance from Earth 2,440.26 light-years
  • Earth Similarity Index 0.306
  • Travel time at Voyager 1 speed 43,033,984 years

Kepler-624 b Planet Profile

Physical Specs

Radius
2.31 R⊕
Radius (Jupiter)
0.206 R♃
Mass
5.95 M⊕
Mass (Jupiter)
0.019 M♃
Density
2.65 g/cm³
Surface Gravity
1.12 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.306
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

#1486of 1978

top 75.1%

This planet

2.31R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-624 b Jupiter
Radius (R⊕)1.002.3111.21
Mass (M⊕)1.005.95317.83
Density (g/cm³)5.512.651.33
Surface Gravity (g)1.001.122.53
Insolation (S⊕)1.00130.760.037

Star Catalogue Identifiers

TIC

TIC 138972811

Gaia DR2

Gaia DR2 2076245950349844608

Gaia DR3

Gaia DR3 2076245950349844608

System

Kepler-624

Percentile among Sub-Neptune cohort

Radius 2.310 R⊕ · percentile 25 / cohort 1978
Mass 5.950 M⊕ · percentile 24 / cohort 1978
Orbital period 14.59 d · percentile 50 / cohort 1946
Distance 748.19 pc · percentile 62 / cohort 1975
ESI 0.306 · percentile 30 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
14.586 days
Semi-major axis
0.1164 AU
Eccentricity
0.000
Inclination
88.22 °

Year Length

A year here lasts approximately 14.59 Earth days (4.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1164 AU.

Transit Fingerprint

Depth

0.038 %

Duration

4.039 h

Impact parameter b

0.370

Rp / R★

0.018484

Transit midpoint (BJD)

2,455,005.2223

Photometric dip

Transit produces a flux drop of 379 ppm lasting ≈ 4.04 h.

Extended Orbital Architecture

Planet / star radius ratio

0.018484

Semi-major axis / stellar radius

21.390

Impact parameter (b)

0.370

Transit mid-time (BJD)

2,455,005.2223

Angular separation (arcsec)

0.15600

Eq. Temperature

852K

(579 °C)

Insolation (S⊕)

130.76

Earth = 1.00

Earth Similarity (ESI)

0.306

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

Host System: Kepler-624

Spectral Class

F-type yellow-white

Effective Temperature

6,117 K — hotter than the Sun (5,778 K)

Estimated Age

3.72 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.180 R☉

Stellar Mass

1.100 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

4.330 dex

Stellar density

0.590 g/cm³

Metallicity ratio

[Fe/H]

Distance
748.19 parsec
Light-years 2,440.26 ly
V-band magnitude
13.64 mag
Voyager-speed travel 43,033,984 yr

Multi-band Host Photometry — 16 bands

9.313.913.89B13.64V13.46Gaia13.49Kepler13.06TESS13.84Sloan g13.45Sloan r13.34Sloan i13.29Sloan z12.51J12.20H12.21K12.11W112.19W211.98W39.29W4

Astrometric Data

Parallax

1.308 mas

Total Proper Motion

6.374 mas/yr

PM Right Ascension

0.31 mas/yr

PM Declination

6.37 mas/yr

Galactic Cartesian (pc)

x = 0.328 · y = -0.698 · z = 0.637

Equatorial (J2000)

RA 295.19336° · Dec 39.53969°

Galactic ℓ, b

73.355° · 8.261°

Ecliptic λ, β

310.302° · 59.503°

HTM-20 index

-1957762688

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