Key parameters at a glance
- A radius of 1.33 Earth radii
- A mass of 2.33 Earth masses
- Surface gravity around 1.32 g
- An orbital period of 14.614 days
- Semi-major axis 0.1240 AU
- Equilibrium temperature 901 K (628 °C)
- Distance from Earth 2,874.75 light-years
- Earth Similarity Index 0.346
- Travel time at Voyager 1 speed 50,696,249 years
1 sibling around Kepler-393
Kepler-393 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-393 b | Super-Earth | 1.29 | 2.21 | 9.182 | 1,052 | 2014 |
| Kepler-393 c this | Super-Earth | 1.33 | 2.33 | 14.614 | 901 | 2014 |
Kepler-393 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1022of 1176
top 86.8%
This planet
1.33R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-393 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.33 | 11.21 |
| Mass (M⊕) | 1.00 | 2.33 | 317.83 |
| Density (g/cm³) | 5.51 | 5.44 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.32 | 2.53 |
| Insolation (S⊕) | 1.00 | 231.21 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 159580535
Gaia DR2
Gaia DR2 2127390970655877888
Gaia DR3
Gaia DR3 2127390970655877888
System
Kepler-393
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.61 Earth days (4.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1240 AU.
Transit Fingerprint
Depth
0.007 %
Duration
5.401 h
Impact parameter b
0.760
Rp / R★
0.008003
Transit midpoint (BJD)
2,454,973.4124
Photometric dip
Transit produces a flux drop of 75 ppm lasting ≈ 5.40 h.
Extended Orbital Architecture
Planet / star radius ratio
0.008003
Semi-major axis / stellar radius
10.450
Impact parameter (b)
0.760
Transit mid-time (BJD)
2,454,973.4124
Angular separation (arcsec)
0.14100
Eq. Temperature
901K
(628 °C)
Insolation (S⊕)
231.21
Earth = 1.00
Earth Similarity (ESI)
0.346
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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-393
Spectral Class
F-type yellow-white
Effective Temperature
6,189 K — hotter than the Sun (5,778 K)
Estimated Age
2.82 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.382 R☉
Stellar Mass
1.256 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
4.233 dex
Stellar density
0.380 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.106 mas
Total Proper Motion
11.391 mas/yr
PM Right Ascension
-8.03 mas/yr
PM Declination
-8.08 mas/yr
Galactic Cartesian (pc)
x = 0.252 · y = -0.658 · z = 0.709
Equatorial (J2000)
RA 290.99521° · Dec 45.19219°
Galactic ℓ, b
77.068° · 13.577°
Ecliptic λ, β
308.147° · 65.874°
HTM-20 index
1596418470
Similar Worlds
Kepler-144 b
Super-Earth · F-type yellow-white
Radius 1.33 R⊕ · 1,255.4 ly
Kepler-1508 b
Super-Earth · F-type yellow-white
Radius 1.33 R⊕ · 4,110.5 ly
Kepler-348 c
Super-Earth · F-type yellow-white
Radius 1.33 R⊕ · 1,861.6 ly
Kepler-1224 b
Super-Earth · F-type yellow-white
Radius 1.33 R⊕ · 1,825.2 ly
Kepler-1602 b
Super-Earth · F-type yellow-white
Radius 1.34 R⊕ · 2,054.1 ly
Kepler-90 i
Super-Earth · F-type yellow-white
Radius 1.32 R⊕ · 2,766.6 ly