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 2.024 days
- Semi-major axis 0.0320 AU
- Equilibrium temperature 1,597 K (1324 °C)
- Distance from Earth 1,789.57 light-years
- Earth Similarity Index 0.160
- Travel time at Voyager 1 speed 31,559,106 years
2 siblings around Kepler-142
Kepler-142 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-142 b this | Super-Earth | 1.99 | 4.62 | 2.024 | 1,597 | 2014 |
| Kepler-142 c | Sub-Neptune | 2.86 | 8.55 | 4.762 | 1,201 | 2014 |
| Kepler-142 d | Sub-Neptune | 2.16 | 5.31 | 41.809 | 582 | 2014 |
Kepler-142 b 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-142 b | 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 | 1,247.91 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 27394293
Gaia DR2
Gaia DR2 2128724678262662144
Gaia DR3
Gaia DR3 2128724678262662144
System
Kepler-142
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.02 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0320 AU.
Transit Fingerprint
Depth
0.024 %
Duration
2.489 h
Impact parameter b
0.490
Rp / R★
0.014890
Transit midpoint (BJD)
2,455,003.4947
Photometric dip
Transit produces a flux drop of 239 ppm lasting ≈ 2.49 h.
Extended Orbital Architecture
Planet / star radius ratio
0.014890
Semi-major axis / stellar radius
4.880
Impact parameter (b)
0.490
Transit mid-time (BJD)
2,455,003.4947
Angular separation (arcsec)
0.05830
Eq. Temperature
1,597K
(1324 °C)
Insolation (S⊕)
1,247.91
Earth = 1.00
Earth Similarity (ESI)
0.160
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-142
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,790 K — hotter than the Sun (5,778 K)
Estimated Age
7.59 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.269 R☉
Stellar Mass
0.978 M☉
Metallicity [Fe/H]
0.05
Extended Stellar Properties
Surface gravity (log g)
4.262 dex
Stellar density
0.740 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.794 mas
Total Proper Motion
21.174 mas/yr
PM Right Ascension
13.39 mas/yr
PM Declination
16.40 mas/yr
Galactic Cartesian (pc)
x = 0.281 · y = -0.600 · z = 0.749
Equatorial (J2000)
RA 295.11901° · Dec 48.48136°
Galactic ℓ, b
81.370° · 12.483°
Ecliptic λ, β
318.057° · 67.773°
HTM-20 index
1846212821
Similar Worlds
Kepler-1144 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 3,720.0 ly
Kepler-181 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 1,987.2 ly
Kepler-1457 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 2,902.4 ly
Kepler-625 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 2,481.1 ly
Kepler-526 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 2,172.7 ly
Kepler-60 d
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 3,343.4 ly