Confirmed Exoplanet Discovered 2014

Kepler-320 c

A super-earth orbiting the f-type yellow-white Kepler-320, located approximately 2,696.0 light-years from Earth.

Key parameters at a glance

  • A radius of 1.37 Earth radii
  • A mass of 2.45 Earth masses
  • Surface gravity around 1.31 g
  • An orbital period of 17.935 days
  • Semi-major axis 0.1420 AU
  • Equilibrium temperature 1,002 K (729 °C)
  • Distance from Earth 2,696.05 light-years
  • Earth Similarity Index 0.306
  • Travel time at Voyager 1 speed 47,544,802 years

1 sibling around Kepler-320

Kepler-320 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-320 b Rocky Terrestrial 1.14 1.55 8.372 1,292 2014
Kepler-320 c this Super-Earth 1.37 2.45 17.935 1,002 2014

Kepler-320 c Planet Profile

Physical Specs

Radius
1.37 R⊕
Radius (Jupiter)
0.122 R♃
Mass
2.45 M⊕
Mass (Jupiter)
0.008 M♃
Density
5.24 g/cm³
Surface Gravity
1.31 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.306
HZ Position Inner
Controversial No

Discovery

Year 2014
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#966of 1176

top 82.1%

This planet

1.37R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-320 c Jupiter
Radius (R⊕)1.001.3711.21
Mass (M⊕)1.002.45317.83
Density (g/cm³)5.515.241.33
Surface Gravity (g)1.001.312.53
Insolation (S⊕)1.00101.620.037

Star Catalogue Identifiers

TIC

TIC 275575525

Gaia DR2

Gaia DR2 2128079230577866880

Gaia DR3

Gaia DR3 2128079230577866880

System

Kepler-320

Percentile among Super-Earth cohort

Radius 1.370 R⊕ · percentile 17 / cohort 1176
Mass 2.450 M⊕ · percentile 17 / cohort 1176
Orbital period 17.93 d · percentile 82 / cohort 1164
Distance 826.61 pc · percentile 70 / cohort 1171
ESI 0.306 · percentile 38 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
17.935 days
Semi-major axis
0.1420 AU
Eccentricity
0.000
Inclination
80.93 °

Year Length

A year here lasts approximately 17.93 Earth days (4.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1420 AU.

Transit Fingerprint

Depth

0.014 %

Duration

5.260 h

Impact parameter b

0.220

Rp / R★

0.012383

Transit midpoint (BJD)

2,454,971.2182

Photometric dip

Transit produces a flux drop of 143 ppm lasting ≈ 5.26 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012383

Semi-major axis / stellar radius

6.190

Impact parameter (b)

0.220

Transit mid-time (BJD)

2,454,971.2182

Angular separation (arcsec)

0.17200

Eq. Temperature

1,002K

(729 °C)

Insolation (S⊕)

101.62

Earth = 1.00

Earth Similarity (ESI)

0.306

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Host System: Kepler-320

Spectral Class

F-type yellow-white

Effective Temperature

6,435 K — hotter than the Sun (5,778 K)

Estimated Age

2.14 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.108 R☉

Stellar Mass

1.072 M☉

Metallicity [Fe/H]

-0.12

Extended Stellar Properties

Surface gravity (log g)

4.419 dex

Stellar density

0.560 g/cm³

Metallicity ratio

[M/H]

Distance
826.61 parsec
Light-years 2,696.05 ly
V-band magnitude
13.49 mag
Voyager-speed travel 47,544,802 yr

Multi-band Host Photometry — 16 bands

9.514.214.24B13.49V13.43Gaia13.47Kepler13.06TESS13.79Sloan g13.43Sloan r13.34Sloan i13.33Sloan z12.55J12.28H12.31K12.20W112.23W212.21W39.50W4

Astrometric Data

Parallax

1.181 mas

Total Proper Motion

8.423 mas/yr

PM Right Ascension

3.68 mas/yr

PM Declination

7.58 mas/yr

Galactic Cartesian (pc)

x = 0.273 · y = -0.636 · z = 0.721

Equatorial (J2000)

RA 293.21352° · Dec 46.17515°

Galactic ℓ, b

78.665° · 12.604°

Ecliptic λ, β

312.588° · 66.216°

HTM-20 index

-1453042679

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