Key parameters at a glance

A radius of 1.19 Earth radii
A mass of 1.81 Earth masses
Surface gravity around 1.28 g
An orbital period of 3.931 days
Semi-major axis 0.0500 AU
Equilibrium temperature 1,317 K (1044 °C)
Distance from Earth 2,653.97 light-years
Earth Similarity Index 0.230
Travel time at Voyager 1 speed 46,802,825 years

1 sibling around Kepler-380

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

Kepler-380 b Planet Profile

Physical Specs

Radius

1.19 R⊕

Radius (Jupiter)

0.106 R♃

Mass

1.81 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.90 g/cm³

Surface Gravity

1.28 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.230

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

#101of 570

top 17.5%

This planet

1.19R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

KOI-351 c 1.19 R⊕ Kepler-953 c 1.19 R⊕ Kepler-310 b 1.19 R⊕

Metric	Earth	Kepler-380 b	Jupiter
Radius (R⊕)	1.00	1.19	11.21
Mass (M⊕)	1.00	1.81	317.83
Density (g/cm³)	5.51	5.90	1.33
Surface Gravity (g)	1.00	1.28	2.53
Insolation (S⊕)	1.00	808.09	0.037

Star Catalogue Identifiers

TIC

TIC 48132154

Gaia DR2

Gaia DR2 2143746515354698496

Gaia DR3

Gaia DR3 2143746515354698496

System

Kepler-380

Percentile among Rocky Terrestrial cohort

Radius 1.190 R⊕ · percentile 80 / cohort 570

Mass 1.810 M⊕ · percentile 74 / cohort 570

Orbital period 3.93 d · percentile 43 / cohort 567

Distance 813.71 pc · percentile 86 / cohort 566

ESI 0.230 · percentile 20 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

3.931 days

Semi-major axis

0.0500 AU

Eccentricity

0.000

Inclination

88.74 °

Year Length

A year here lasts approximately 3.93 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0500 AU.

Transit Fingerprint

Depth

0.010 %

Duration

2.962 h

Impact parameter b

0.190

Rp / R★

0.008968

Transit midpoint (BJD)

2,454,968.1990

Photometric dip

Transit produces a flux drop of 101 ppm lasting ≈ 2.96 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008968

Semi-major axis / stellar radius

10.090

Impact parameter (b)

0.190

Transit mid-time (BJD)

2,454,968.1990

Angular separation (arcsec)

0.06140

Eq. Temperature

1,317K

(1044 °C)

Insolation (S⊕)

808.09

Earth = 1.00

Earth Similarity (ESI)

0.230

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

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

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

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