Key parameters at a glance

A radius of 1.60 Earth radii
A mass of 2.80 Earth masses
Surface gravity around 1.09 g
An orbital period of 8.041 days
Semi-major axis 0.0648 AU
Equilibrium temperature 507 K (234 °C)
Distance from Earth 846.48 light-years
Earth Similarity Index 0.453
Travel time at Voyager 1 speed 14,927,717 years
Almost certainly tidally locked to its host star given the close orbit

2 siblings around Kepler-114

Kepler-114 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-114 b	Super-Earth	1.26	1.09	5.189	586	2014
Kepler-114 c this	Super-Earth	1.60	2.80	8.041	507	2013
Kepler-114 d	Sub-Neptune	2.53	3.90	11.776	446	2013

Kepler-114 c Planet Profile

Physical Specs

Radius

1.60 R⊕

Radius (Jupiter)

0.143 R♃

Mass

2.80 M⊕

Mass (Jupiter)

0.009 M♃

Density

1.18 g/cm³

Surface Gravity

1.09 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.453

HZ Position Inner

Controversial No

Discovery

Year 2013

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#570of 1176

top 48.4%

This planet

1.60R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

EPIC 220554210 c 1.60 R⊕ Kepler-49 d 1.60 R⊕ Kepler-394 b 1.60 R⊕

Metric	Earth	Kepler-114 c	Jupiter
Radius (R⊕)	1.00	1.60	11.21
Mass (M⊕)	1.00	2.80	317.83
Density (g/cm³)	5.51	1.18	1.33
Surface Gravity (g)	1.00	1.09	2.53
Insolation (S⊕)	1.00	51.62	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2.800 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 27011135

Gaia DR2

Gaia DR2 2128939873302216320

Gaia DR3

Gaia DR3 2128939873302216320

System

Kepler-114

Percentile among Super-Earth cohort

Radius 1.600 R⊕ · percentile 50 / cohort 1176

Mass 2.800 M⊕ · percentile 31 / cohort 1176

Orbital period 8.04 d · percentile 57 / cohort 1164

Distance 259.53 pc · percentile 28 / cohort 1171

ESI 0.453 · percentile 68 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

8.041 days

Semi-major axis

0.0648 AU

Eccentricity

0.000

Inclination

89.36 °

Year Length

A year here lasts approximately 8.04 Earth days (2.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0648 AU.

Transit Fingerprint

Depth

0.059 %

Duration

2.632 h

Impact parameter b

0.650

Rp / R★

0.021784

Transit midpoint (BJD)

2,454,976.0389

Photometric dip

Transit produces a flux drop of 590 ppm lasting ≈ 2.63 h.

Extended Orbital Architecture

Planet / star radius ratio

0.021784

Semi-major axis / stellar radius

23.765

Impact parameter (b)

0.650

Transit mid-time (BJD)

2,454,976.0389

Angular separation (arcsec)

0.25000

Eq. Temperature

507K

(234 °C)

Insolation (S⊕)

51.62

Earth = 1.00

Earth Similarity (ESI)

0.453

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Transit timing variations

Gravitational interactions from neighbours have been detected.

Discovery Paper

Primary reference

Xie 2014

Instrument

Kepler CCD Array

Publication

2014-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2013 at Kepler (12 shown).

Kepler-69 c · Super-Earth Kepler-61 b · Sub-Neptune Kepler-62 e · Super-Earth KOI-351 f · Sub-Neptune Kepler-62 f · Super-Earth KOI-351 e · Sub-Neptune Kepler-1704 b · Gas Giant Kepler-37 d · Sub-Neptune Kepler-282 e · Sub-Neptune KOI-351 h · Gas Giant KOI-351 d · Sub-Neptune Kepler-396 b · Sub-Neptune

Host System: Kepler-114

Spectral Class

M-type red dwarf

Effective Temperature

4,660 K — cooler than the Sun (5,778 K)

Estimated Age

2.69 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.540 R☉

Stellar Mass

0.560 M☉

Metallicity [Fe/H]

0.23

Extended Stellar Properties

Surface gravity (log g)

4.720 dex

Stellar density

3.413 g/cm³

Metallicity ratio

[M/H]

Distance

259.53 parsec

Light-years 846.48 ly

V-band magnitude

13.96 mag

Voyager-speed travel 14,927,717 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

3.824 mas

Total Proper Motion

64.544 mas/yr

PM Right Ascension

12.81 mas/yr

PM Declination

63.26 mas/yr

Galactic Cartesian (pc)

x = 0.272 · y = -0.607 · z = 0.747

Equatorial (J2000)

RA 294.12148° · Dec 48.34980°

Galactic ℓ, b

80.944° · 13.015°

Ecliptic λ, β

316.326° · 67.946°

HTM-20 index

-1856230514