Key parameters at a glance
- A radius of 1.85 Earth radii
- A mass of 4.08 Earth masses
- Surface gravity around 1.19 g
- An orbital period of 16.282 days
- Semi-major axis 0.1130 AU
- Equilibrium temperature 505 K (232 °C)
- Distance from Earth 929.91 light-years
- Earth Similarity Index 0.549
- Travel time at Voyager 1 speed 16,398,903 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-202
Kepler-202 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-202 b | Super-Earth | 1.63 | 3.29 | 4.069 | 802 | 2014 |
| Kepler-202 c this | Super-Earth | 1.85 | 4.08 | 16.282 | 505 | 2014 |
Kepler-202 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#189of 1176
top 16.0%
This planet
1.85R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-202 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.85 | 11.21 |
| Mass (M⊕) | 1.00 | 4.08 | 317.83 |
| Density (g/cm³) | 5.51 | 3.54 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.19 | 2.53 |
| Insolation (S⊕) | 1.00 | 17.07 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 258202719
Gaia DR2
Gaia DR2 2104376405579347968
Gaia DR3
Gaia DR3 2104376405579347968
System
Kepler-202
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 16.28 Earth days (4.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1130 AU.
Transit Fingerprint
Depth
0.079 %
Duration
2.853 h
Impact parameter b
0.310
Rp / R★
0.025366
Transit midpoint (BJD)
2,455,013.7962
Photometric dip
Transit produces a flux drop of 793 ppm lasting ≈ 2.85 h.
Extended Orbital Architecture
Planet / star radius ratio
0.025366
Semi-major axis / stellar radius
42.020
Impact parameter (b)
0.310
Transit mid-time (BJD)
2,455,013.7962
Angular separation (arcsec)
0.39600
Eq. Temperature
505K
(232 °C)
Insolation (S⊕)
17.07
Earth = 1.00
Earth Similarity (ESI)
0.549
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.
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-202
Spectral Class
K-type orange
Effective Temperature
4,668 K — cooler than the Sun (5,778 K)
Estimated Age
3.24 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.667 R☉
Stellar Mass
0.683 M☉
Metallicity [Fe/H]
-0.21
Extended Stellar Properties
Surface gravity (log g)
4.650 dex
Stellar density
2.220 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
3.479 mas
Total Proper Motion
50.264 mas/yr
PM Right Ascension
10.37 mas/yr
PM Declination
-49.18 mas/yr
Galactic Cartesian (pc)
x = 0.169 · y = -0.732 · z = 0.660
Equatorial (J2000)
RA 282.97349° · Dec 41.32180°
Galactic ℓ, b
71.006° · 17.443°
Ecliptic λ, β
292.409° · 63.755°
HTM-20 index
-1031535246
Similar Worlds
Kepler-1315 c
Super-Earth · K-type orange
Radius 1.84 R⊕ · 1,568.4 ly
WASP-132 c
Super-Earth · K-type orange
Radius 1.84 R⊕ · 400.9 ly
Kepler-440 b
Super-Earth · K-type orange
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Kepler-1651 b
Super-Earth · K-type orange
Radius 1.84 R⊕ · 216.6 ly
Kepler-357 b
Super-Earth · K-type orange
Radius 1.84 R⊕ · 2,245.8 ly
Ross 176 b
Super-Earth · K-type orange
Radius 1.84 R⊕ · 151.5 ly