Key parameters at a glance
- A radius of 1.96 Earth radii
- A mass of 4.50 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 26.234 days
- Semi-major axis 0.1850 AU
- Equilibrium temperature 754 K (481 °C)
- Distance from Earth 2,549.27 light-years
- Earth Similarity Index 0.367
- Travel time at Voyager 1 speed 44,956,395 years
3 siblings around Kepler-342
Kepler-342 c shares its host star with 3 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-342 e | Rocky Terrestrial | 0.88 | 0.62 | 1.644 | 1,897 | 2016 |
| Kepler-342 b | Sub-Neptune | 2.25 | 5.69 | 15.170 | 905 | 2014 |
| Kepler-342 c this | Super-Earth | 1.96 | 4.50 | 26.234 | 754 | 2014 |
| Kepler-342 d | Sub-Neptune | 2.49 | 6.76 | 39.459 | 658 | 2014 |
Kepler-342 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#49of 1176
top 4.1%
This planet
1.96R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-342 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.96 | 11.21 |
| Mass (M⊕) | 1.00 | 4.50 | 317.83 |
| Density (g/cm³) | 5.51 | 3.28 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 77.29 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 63293562
Gaia DR2
Gaia DR2 2128298617506651904
Gaia DR3
Gaia DR3 2128298617506651904
System
Kepler-342
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 26.23 Earth days (7.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1850 AU.
Transit Fingerprint
Depth
0.020 %
Duration
2.435 h
Impact parameter b
0.120
Rp / R★
0.012378
Transit midpoint (BJD)
2,454,974.9987
Photometric dip
Transit produces a flux drop of 197 ppm lasting ≈ 2.44 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012378
Semi-major axis / stellar radius
78.870
Impact parameter (b)
0.120
Transit mid-time (BJD)
2,454,974.9987
Angular separation (arcsec)
0.23700
Eq. Temperature
754K
(481 °C)
Insolation (S⊕)
77.29
Earth = 1.00
Earth Similarity (ESI)
0.367
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-342
Spectral Class
F-type yellow-white
Effective Temperature
6,175 K — hotter than the Sun (5,778 K)
Estimated Age
2.82 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.472 R☉
Stellar Mass
1.213 M☉
Metallicity [Fe/H]
0.00
Extended Stellar Properties
Surface gravity (log g)
4.187 dex
Stellar density
0.013 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.251 mas
Total Proper Motion
8.649 mas/yr
PM Right Ascension
-5.24 mas/yr
PM Declination
-6.88 mas/yr
Galactic Cartesian (pc)
x = 0.264 · y = -0.632 · z = 0.728
Equatorial (J2000)
RA 292.67805° · Dec 46.72668°
Galactic ℓ, b
79.008° · 13.177°
Ecliptic λ, β
312.274° · 66.867°
HTM-20 index
-943510250
Similar Worlds
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Radius 1.96 R⊕ · 3,499.3 ly
Kepler-1857 b
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Kepler-347 b
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HR 858 c
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