Key parameters at a glance
- A radius of 1.26 Earth radii
- A mass of 1.09 Earth masses
- Surface gravity around 0.69 g
- An orbital period of 5.189 days
- Semi-major axis 0.0530 AU
- Equilibrium temperature 586 K (313 °C)
- Distance from Earth 846.48 light-years
- Earth Similarity Index 0.482
- 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 b 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 this | Super-Earth | 1.26 | 1.09 | 5.189 | 586 | 2014 |
| Kepler-114 c | 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 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1149of 1176
top 97.6%
This planet
1.26R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-114 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.26 | 11.21 |
| Mass (M⊕) | 1.00 | 1.09 | 317.83 |
| Density (g/cm³) | 5.51 | 2.53 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.69 | 2.53 |
| Insolation (S⊕) | 1.00 | 92.54 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 1.090 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
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.19 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0530 AU.
Transit Fingerprint
Depth
0.035 %
Duration
2.435 h
Impact parameter b
0.690
Rp / R★
0.016875
Transit midpoint (BJD)
2,454,978.3632
Photometric dip
Transit produces a flux drop of 354 ppm lasting ≈ 2.44 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016875
Semi-major axis / stellar radius
16.940
Impact parameter (b)
0.690
Transit mid-time (BJD)
2,454,978.3632
Angular separation (arcsec)
0.20400
Eq. Temperature
586K
(313 °C)
Insolation (S⊕)
92.54
Earth = 1.00
Earth Similarity (ESI)
0.482
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.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-114
Spectral Class
M-type red dwarf
Effective Temperature
4,605 K — cooler than the Sun (5,778 K)
Estimated Age
2.69 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.667 R☉
Stellar Mass
0.770 M☉
Metallicity [Fe/H]
0.23
Extended Stellar Properties
Surface gravity (log g)
4.650 dex
Stellar density
3.413 g/cm³
Metallicity ratio
[M/H]
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
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TOI-4336 A c
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Kepler-186 e
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TOI-2445 b
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Kepler-186 c
Super-Earth · M-type red dwarf
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Kepler-445 d
Super-Earth · M-type red dwarf
Radius 1.25 R⊕ · 414.9 ly