Key parameters at a glance
- A radius of 1.99 Earth radii
- A mass of 4.62 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 16.399 days
- Semi-major axis 0.1330 AU
- Equilibrium temperature 847 K (574 °C)
- Distance from Earth 1,372.52 light-years
- Earth Similarity Index 0.324
- Travel time at Voyager 1 speed 24,204,445 years
1 sibling around Kepler-136
Kepler-136 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-136 b | Sub-Neptune | 2.05 | 19.80 | 11.579 | 951 | 2014 |
| Kepler-136 c this | Super-Earth | 1.99 | 4.62 | 16.399 | 847 | 2014 |
Kepler-136 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#4of 1176
top 0.3%
This planet
1.99R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-136 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.99 | 11.21 |
| Mass (M⊕) | 1.00 | 4.62 | 317.83 |
| Density (g/cm³) | 5.51 | 3.22 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 162.04 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 272375343
Gaia DR2
Gaia DR2 2077203178296653056
Gaia DR3
Gaia DR3 2077203178296653056
System
Kepler-136
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 16.40 Earth days (4.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1330 AU.
Transit Fingerprint
Depth
0.023 %
Duration
3.502 h
Impact parameter b
0.100
Rp / R★
0.013892
Transit midpoint (BJD)
2,454,964.9685
Photometric dip
Transit produces a flux drop of 230 ppm lasting ≈ 3.50 h.
Extended Orbital Architecture
Planet / star radius ratio
0.013892
Semi-major axis / stellar radius
36.730
Impact parameter (b)
0.100
Transit mid-time (BJD)
2,454,964.9685
Angular separation (arcsec)
0.31600
Eq. Temperature
847K
(574 °C)
Insolation (S⊕)
162.04
Earth = 1.00
Earth Similarity (ESI)
0.324
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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
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-136
Spectral Class
F-type yellow-white
Effective Temperature
6,165 K — hotter than the Sun (5,778 K)
Estimated Age
2.75 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.355 R☉
Stellar Mass
1.204 M☉
Metallicity [Fe/H]
0.00
Extended Stellar Properties
Surface gravity (log g)
4.244 dex
Stellar density
0.506 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 14 bands
Astrometric Data
Parallax
2.348 mas
Total Proper Motion
3.448 mas/yr
PM Right Ascension
-2.09 mas/yr
PM Declination
2.74 mas/yr
Galactic Cartesian (pc)
x = 0.328 · y = -0.659 · z = 0.677
Equatorial (J2000)
RA 296.46730° · Dec 42.59880°
Galactic ℓ, b
76.534° · 8.888°
Ecliptic λ, β
314.368° · 62.022°
HTM-20 index
1396327261
Similar Worlds
Kepler-341 e
Super-Earth · F-type yellow-white
Radius 1.99 R⊕ · 3,415.0 ly
Kepler-1180 b
Super-Earth · F-type yellow-white
Radius 1.99 R⊕ · 5,208.1 ly
Kepler-996 b
Super-Earth · F-type yellow-white
Radius 1.98 R⊕ · 3,967.9 ly
Kepler-1061 b
Super-Earth · F-type yellow-white
Radius 1.98 R⊕ · 1,772.3 ly
Kepler-59 c
Super-Earth · F-type yellow-white
Radius 1.98 R⊕ · 3,793.9 ly
Kepler-1025 b
Super-Earth · F-type yellow-white
Radius 1.98 R⊕ · 2,621.6 ly