Confirmed Exoplanet Discovered 2015

Kepler-430 c

A super-earth orbiting the g-type yellow (sun-like) Kepler-430, located approximately 2,992.4 light-years from Earth.

Key parameters at a glance

  • A radius of 1.75 Earth radii
  • A mass of 3.71 Earth masses
  • Surface gravity around 1.21 g
  • An orbital period of 110.979 days
  • Semi-major axis 0.4757 AU
  • Equilibrium temperature 458 K (185 °C)
  • Distance from Earth 2,992.41 light-years
  • Earth Similarity Index 0.609
  • Travel time at Voyager 1 speed 52,771,082 years

1 sibling around Kepler-430

Kepler-430 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-430 b Sub-Neptune 3.25 10.60 35.968 667 2015
Kepler-430 c this Super-Earth 1.75 3.71 110.979 458 2015

Kepler-430 c Planet Profile

Physical Specs

Radius
1.75 R⊕
Radius (Jupiter)
0.160 R♃
Mass
3.71 M⊕
Mass (Jupiter)
0.012 M♃
Density
3.80 g/cm³
Surface Gravity
1.21 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.609
HZ Position Inner
Controversial No

Discovery

Year 2015
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#326of 1176

top 27.6%

This planet

1.75R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-430 c Jupiter
Radius (R⊕)1.001.7511.21
Mass (M⊕)1.003.71317.83
Density (g/cm³)5.513.801.33
Surface Gravity (g)1.001.212.53
Insolation (S⊕)1.009.100.037

Star Catalogue Identifiers

TIC

TIC 26748113

Gaia DR2

Gaia DR2 2129833810615727488

Gaia DR3

Gaia DR3 2129833810615727488

System

Kepler-430

Percentile among Super-Earth cohort

Radius 1.750 R⊕ · percentile 71 / cohort 1176
Mass 3.710 M⊕ · percentile 64 / cohort 1176
Orbital period 110.98 d · percentile 99 / cohort 1164
Distance 917.48 pc · percentile 76 / cohort 1171
ESI 0.609 · percentile 81 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
110.979 days
Semi-major axis
0.4757 AU
Eccentricity
0.000
Inclination
89.94 °

Year Length

A year here lasts approximately 110.98 Earth days (30.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4757 AU.

Transit Fingerprint

Depth

0.015 %

Duration

12.388 h

Impact parameter b

0.296

Rp / R★

0.010800

Transit midpoint (BJD)

2,454,979.9835

Photometric dip

Transit produces a flux drop of 150 ppm lasting ≈ 12.39 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010800

Semi-major axis / stellar radius

66.100

Impact parameter (b)

0.296

Transit mid-time (BJD)

2,454,979.9835

Angular separation (arcsec)

0.51800

Eq. Temperature

458K

(185 °C)

Insolation (S⊕)

9.10

Earth = 1.00

Earth Similarity (ESI)

0.609

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

Everett et al. 2015

Instrument

Kepler CCD Array

Publication

2015-02

Observation locale

Space

Host System: Kepler-430

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,884 K — hotter than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.485 R☉

Stellar Mass

1.166 M☉

Metallicity [Fe/H]

0.20

Extended Stellar Properties

Surface gravity (log g)

4.150 dex

Stellar density

0.480 g/cm³

Metallicity ratio

[Fe/H]

Distance
917.48 parsec
Light-years 2,992.41 ly
V-band magnitude
13.91 mag
Voyager-speed travel 52,771,082 yr

Multi-band Host Photometry — 16 bands

9.814.614.64B13.91V13.81Gaia13.85Kepler13.38TESS14.23Sloan g13.80Sloan r13.68Sloan i13.63Sloan z12.74J12.49H12.39K12.42W112.43W212.80W39.80W4

Astrometric Data

Parallax

1.061 mas

Total Proper Motion

8.761 mas/yr

PM Right Ascension

-1.80 mas/yr

PM Declination

-8.57 mas/yr

Galactic Cartesian (pc)

x = 0.251 · y = -0.598 · z = 0.761

Equatorial (J2000)

RA 292.80860° · Dec 49.57942°

Galactic ℓ, b

81.698° · 14.326°

Ecliptic λ, β

315.666° · 69.428°

HTM-20 index

782993170

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