Key parameters at a glance
- A radius of 1.82 Earth radii
- A mass of 11.70 Earth masses
- Surface gravity around 3.53 g
- An orbital period of 4.754 days
- Semi-major axis 0.0512 AU
- Equilibrium temperature 775 K (502 °C)
- Distance from Earth 855.67 light-years
- Earth Similarity Index 0.330
- Travel time at Voyager 1 speed 15,089,802 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-113
Kepler-113 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-113 b this | Super-Earth | 1.82 | 11.70 | 4.754 | 775 | 2014 |
| Kepler-113 c | Sub-Neptune | 2.18 | 8.70 | 8.925 | 628 | 2014 |
Kepler-113 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#235of 1176
top 19.9%
This planet
1.82R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-113 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.82 | 11.21 |
| Mass (M⊕) | 1.00 | 11.70 | 317.83 |
| Density (g/cm³) | 5.51 | 10.73 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.53 | 2.53 |
| Insolation (S⊕) | 1.00 | 105.33 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 11.700 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 7.527 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 298834019
Gaia DR2
Gaia DR2 2133369840008452224
Gaia DR3
Gaia DR3 2133369840008452224
System
Kepler-113
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.75 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0512 AU.
Transit Fingerprint
Depth
0.075 %
Duration
2.504 h
Impact parameter b
0.080
Rp / R★
0.024190
Transit midpoint (BJD)
2,454,961.5463
Photometric dip
Transit produces a flux drop of 749 ppm lasting ≈ 2.50 h.
Extended Orbital Architecture
Planet / star radius ratio
0.024190
Semi-major axis / stellar radius
14.530
Impact parameter (b)
0.080
RV semi-amplitude (K)
5.400 m/s
Transit mid-time (BJD)
2,454,961.5463
Angular separation (arcsec)
0.19500
Eq. Temperature
775K
(502 °C)
Insolation (S⊕)
105.33
Earth = 1.00
Earth Similarity (ESI)
0.330
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.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Marcy et al. 2014Instrument
Kepler CCD Array
Publication
2014-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-113
Spectral Class
K-type orange
Effective Temperature
4,725 K — cooler than the Sun (5,778 K)
Estimated Age
6.89 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.690 R☉
Stellar Mass
0.750 M☉
Metallicity [Fe/H]
0.05
Extended Stellar Properties
Surface gravity (log g)
4.636 dex
Stellar density
2.710 g/cm³
Rotational v·sin i
0.40 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.783 mas
Total Proper Motion
39.325 mas/yr
PM Right Ascension
-5.91 mas/yr
PM Declination
-38.88 mas/yr
Galactic Cartesian (pc)
x = 0.195 · y = -0.599 · z = 0.777
Equatorial (J2000)
RA 287.99787° · Dec 50.94418°
Galactic ℓ, b
81.732° · 17.690°
Ecliptic λ, β
308.938° · 71.956°
HTM-20 index
94128134
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