Key parameters at a glance
- A radius of 3.83 Earth radii
- A mass of 14.00 Earth masses
- Surface gravity around 0.95 g
- An orbital period of 54.156 days
- Semi-major axis 0.2860 AU
- Equilibrium temperature 466 K (193 °C)
- Distance from Earth 3,178.82 light-years
- Earth Similarity Index 0.443
- Travel time at Voyager 1 speed 56,058,558 years
1 sibling around Kepler-293
Kepler-293 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-293 b | Sub-Neptune | 3.07 | 9.64 | 19.254 | 657 | 2014 |
| Kepler-293 c this | Sub-Neptune | 3.83 | 14.00 | 54.156 | 466 | 2014 |
Kepler-293 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#49of 1978
top 2.4%
This planet
3.83R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-293 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.83 | 11.21 |
| Mass (M⊕) | 1.00 | 14.00 | 317.83 |
| Density (g/cm³) | 5.51 | 1.37 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.95 | 2.53 |
| Insolation (S⊕) | 1.00 | 7.29 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158216544
Gaia DR2
Gaia DR2 2105506119417943168
Gaia DR3
Gaia DR3 2105506119417943168
System
Kepler-293
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 54.16 Earth days (14.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2860 AU.
Transit Fingerprint
Depth
0.111 %
Duration
4.608 h
Impact parameter b
0.910
Rp / R★
0.037084
Transit midpoint (BJD)
2,455,005.3652
Photometric dip
Transit produces a flux drop of 1,110 ppm lasting ≈ 4.61 h.
Extended Orbital Architecture
Planet / star radius ratio
0.037084
Semi-major axis / stellar radius
43.500
Impact parameter (b)
0.910
Transit mid-time (BJD)
2,455,005.3652
Angular separation (arcsec)
0.29300
Eq. Temperature
466K
(193 °C)
Insolation (S⊕)
7.29
Earth = 1.00
Earth Similarity (ESI)
0.443
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-293
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,804 K — hotter than the Sun (5,778 K)
Estimated Age
1.32 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.957 R☉
Stellar Mass
0.934 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
4.504 dex
Stellar density
1.510 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.998 mas
Total Proper Motion
0.797 mas/yr
PM Right Ascension
-0.78 mas/yr
PM Declination
-0.17 mas/yr
Galactic Cartesian (pc)
x = 0.208 · y = -0.708 · z = 0.674
Equatorial (J2000)
RA 286.35806° · Dec 42.40649°
Galactic ℓ, b
73.038° · 15.510°
Ecliptic λ, β
298.574° · 64.232°
HTM-20 index
1258884026
Similar Worlds
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Radius 3.83 R⊕ · 4,400.3 ly
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HIP 9618 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.83 R⊕ · 220.3 ly
Kepler-1462 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.82 R⊕ · 3,319.7 ly
Kepler-154 d
Sub-Neptune · G-type yellow (Sun-like)
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Kepler-1811 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.85 R⊕ · 4,535.4 ly