Key parameters at a glance
- A radius of 2.00 Earth radii
- A mass of 4.66 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 5.317 days
- Semi-major axis 0.0600 AU
- Equilibrium temperature 1,105 K (832 °C)
- Distance from Earth 1,091.96 light-years
- Earth Similarity Index 0.243
- Travel time at Voyager 1 speed 19,256,722 years
1 sibling around Kepler-134
Kepler-134 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-134 b this | Sub-Neptune | 2.00 | 4.66 | 5.317 | 1,105 | 2014 |
| Kepler-134 c | Super-Earth | 1.26 | 2.13 | 10.106 | 892 | 2014 |
Kepler-134 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1955of 1978
top 98.8%
This planet
2.00R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-134 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.00 | 11.21 |
| Mass (M⊕) | 1.00 | 4.66 | 317.83 |
| Density (g/cm³) | 5.51 | 3.20 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 301.37 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 48448369
Gaia DR2
Gaia DR2 2132215421518219392
Gaia DR3
Gaia DR3 2132215421518219392
System
Kepler-134
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.32 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0600 AU.
Transit Fingerprint
Depth
0.028 %
Duration
2.901 h
Impact parameter b
0.120
Rp / R★
0.015421
Transit midpoint (BJD)
2,455,004.8761
Photometric dip
Transit produces a flux drop of 284 ppm lasting ≈ 2.90 h.
Extended Orbital Architecture
Planet / star radius ratio
0.015421
Semi-major axis / stellar radius
6.610
Impact parameter (b)
0.120
Transit mid-time (BJD)
2,455,004.8761
Angular separation (arcsec)
0.17900
Eq. Temperature
1,105K
(832 °C)
Insolation (S⊕)
301.37
Earth = 1.00
Earth Similarity (ESI)
0.243
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. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-134
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,983 K — hotter than the Sun (5,778 K)
Estimated Age
3.55 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.176 R☉
Stellar Mass
0.956 M☉
Metallicity [Fe/H]
-0.21
Extended Stellar Properties
Surface gravity (log g)
4.310 dex
Stellar density
1.050 g/cm³
Systemic radial velocity
-27.16 km/s
Metallicity ratio
[M/H]
Multi-band Host Photometry — 15 bands
Astrometric Data
Parallax
2.958 mas
Total Proper Motion
19.189 mas/yr
PM Right Ascension
12.89 mas/yr
PM Declination
14.22 mas/yr
Galactic Cartesian (pc)
x = 0.165 · y = -0.627 · z = 0.762
Equatorial (J2000)
RA 284.73912° · Dec 49.59844°
Galactic ℓ, b
79.633° · 19.167°
Ecliptic λ, β
301.206° · 71.444°
HTM-20 index
-290941955
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Kepler-179 c
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Kepler-280 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.01 R⊕ · 2,545.2 ly