Key parameters at a glance
- A radius of 2.53 Earth radii
- A mass of 6.94 Earth masses
- Surface gravity around 1.08 g
- An orbital period of 14.970 days
- Semi-major axis 0.1250 AU
- Equilibrium temperature 883 K (610 °C)
- Distance from Earth 3,520.51 light-years
- Earth Similarity Index 0.284
- Travel time at Voyager 1 speed 62,084,232 years
1 sibling around Kepler-313
Kepler-313 b 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-313 b this | Sub-Neptune | 2.53 | 6.94 | 14.970 | 883 | 2014 |
| Kepler-313 c | Sub-Neptune | 2.57 | 7.13 | 32.273 | 683 | 2014 |
Kepler-313 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1133of 1978
top 57.2%
This planet
2.53R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-313 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.53 | 11.21 |
| Mass (M⊕) | 1.00 | 6.94 | 317.83 |
| Density (g/cm³) | 5.51 | 2.35 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.08 | 2.53 |
| Insolation (S⊕) | 1.00 | 142.40 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 28448998
Gaia DR2
Gaia DR2 2086932653608913024
Gaia DR3
Gaia DR3 2086932653608913024
System
Kepler-313
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.97 Earth days (4.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1250 AU.
Transit Fingerprint
Depth
0.029 %
Duration
5.858 h
Impact parameter b
0.020
Rp / R★
0.015631
Transit midpoint (BJD)
2,454,967.5006
Photometric dip
Transit produces a flux drop of 291 ppm lasting ≈ 5.86 h.
Extended Orbital Architecture
Planet / star radius ratio
0.015631
Semi-major axis / stellar radius
13.000
Impact parameter (b)
0.020
Transit mid-time (BJD)
2,454,967.5006
Angular separation (arcsec)
0.11600
Eq. Temperature
883K
(610 °C)
Insolation (S⊕)
142.40
Earth = 1.00
Earth Similarity (ESI)
0.284
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-313
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,727 K — cooler than the Sun (5,778 K)
Estimated Age
7.08 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.536 R☉
Stellar Mass
1.114 M☉
Metallicity [Fe/H]
0.26
Extended Stellar Properties
Surface gravity (log g)
4.127 dex
Stellar density
0.370 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.926 mas
Total Proper Motion
13.727 mas/yr
PM Right Ascension
-10.91 mas/yr
PM Declination
-8.33 mas/yr
Galactic Cartesian (pc)
x = 0.312 · y = -0.580 · z = 0.752
Equatorial (J2000)
RA 298.29487° · Dec 48.77540°
Galactic ℓ, b
82.644° · 10.770°
Ecliptic λ, β
323.253° · 67.056°
HTM-20 index
1522651025
Similar Worlds
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Sub-Neptune · G-type yellow (Sun-like)
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Kepler-105 b
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Kepler-896 b
Sub-Neptune · G-type yellow (Sun-like)
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Kepler-727 b
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TOI-1136 g
Sub-Neptune · G-type yellow (Sun-like)
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Kepler-153 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.53 R⊕ · 1,498.3 ly