Confirmed Exoplanet Discovered 2014

Kepler-380 c

A super-earth orbiting the f-type yellow-white Kepler-380, located approximately 2,654.0 light-years from Earth.

Key parameters at a glance

  • A radius of 1.27 Earth radii
  • A mass of 2.15 Earth masses
  • Surface gravity around 1.33 g
  • An orbital period of 7.630 days
  • Semi-major axis 0.0780 AU
  • Equilibrium temperature 1,056 K (783 °C)
  • Distance from Earth 2,653.97 light-years
  • Earth Similarity Index 0.292
  • Travel time at Voyager 1 speed 46,802,825 years

1 sibling around Kepler-380

Kepler-380 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-380 b Rocky Terrestrial 1.19 1.81 3.931 1,317 2014
Kepler-380 c this Super-Earth 1.27 2.15 7.630 1,056 2014

Kepler-380 c Planet Profile

Physical Specs

Radius
1.27 R⊕
Radius (Jupiter)
0.113 R♃
Mass
2.15 M⊕
Mass (Jupiter)
0.007 M♃
Density
5.77 g/cm³
Surface Gravity
1.33 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.292
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

#1135of 1176

top 96.4%

This planet

1.27R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-380 c Jupiter
Radius (R⊕)1.001.2711.21
Mass (M⊕)1.002.15317.83
Density (g/cm³)5.515.771.33
Surface Gravity (g)1.001.332.53
Insolation (S⊕)1.00333.570.037

Star Catalogue Identifiers

TIC

TIC 48132154

Gaia DR2

Gaia DR2 2143746515354698496

Gaia DR3

Gaia DR3 2143746515354698496

System

Kepler-380

Percentile among Super-Earth cohort

Radius 1.270 R⊕ · percentile 3 / cohort 1176
Mass 2.150 M⊕ · percentile 4 / cohort 1176
Orbital period 7.63 d · percentile 56 / cohort 1164
Distance 813.71 pc · percentile 68 / cohort 1171
ESI 0.292 · percentile 35 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
7.630 days
Semi-major axis
0.0780 AU
Eccentricity
0.000
Inclination
87.84 °

Year Length

A year here lasts approximately 7.63 Earth days (2.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0780 AU.

Transit Fingerprint

Depth

0.012 %

Duration

2.949 h

Impact parameter b

0.040

Rp / R★

0.010399

Transit midpoint (BJD)

2,454,970.0807

Photometric dip

Transit produces a flux drop of 124 ppm lasting ≈ 2.95 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010399

Semi-major axis / stellar radius

21.340

Impact parameter (b)

0.040

Transit mid-time (BJD)

2,454,970.0807

Angular separation (arcsec)

0.09590

Eq. Temperature

1,056K

(783 °C)

Insolation (S⊕)

333.57

Earth = 1.00

Earth Similarity (ESI)

0.292

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-380

Spectral Class

F-type yellow-white

Effective Temperature

6,045 K — hotter than the Sun (5,778 K)

Estimated Age

4.43 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.224 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

-0.16

Extended Stellar Properties

Surface gravity (log g)

4.293 dex

Stellar density

0.510 g/cm³

Metallicity ratio

[Fe/H]

Distance
813.71 parsec
Light-years 2,653.97 ly
V-band magnitude
13.74 mag
Voyager-speed travel 46,802,825 yr

Multi-band Host Photometry — 16 bands

9.514.314.35B13.74V13.61Gaia13.65Kepler13.21TESS14.05Sloan g13.61Sloan r13.48Sloan i13.46Sloan z12.61J12.35H12.29K12.24W112.27W212.05W39.51W4

Astrometric Data

Parallax

1.200 mas

Total Proper Motion

11.173 mas/yr

PM Right Ascension

11.02 mas/yr

PM Declination

1.84 mas/yr

Galactic Cartesian (pc)

x = 0.141 · y = -0.644 · z = 0.752

Equatorial (J2000)

RA 282.39470° · Dec 48.75913°

Galactic ℓ, b

78.259° · 20.343°

Ecliptic λ, β

295.879° · 71.087°

HTM-20 index

2136222937

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