Key parameters at a glance
- A radius of 2.63 Earth radii
- A mass of 7.41 Earth masses
- Surface gravity around 1.07 g
- An orbital period of 6.941 days
- Semi-major axis 0.0690 AU
- Equilibrium temperature 876 K (603 °C)
- Distance from Earth 1,641.99 light-years
- Earth Similarity Index 0.283
- Travel time at Voyager 1 speed 28,956,434 years
2 siblings around Kepler-319
Kepler-319 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-319 b | Super-Earth | 1.63 | 3.29 | 4.363 | 1,023 | 2014 |
| Kepler-319 c this | Sub-Neptune | 2.63 | 7.41 | 6.941 | 876 | 2014 |
| Kepler-319 d | Sub-Neptune | 2.29 | 5.86 | 31.782 | 528 | 2014 |
Kepler-319 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#969of 1978
top 48.9%
This planet
2.63R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-319 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.63 | 11.21 |
| Mass (M⊕) | 1.00 | 7.41 | 317.83 |
| Density (g/cm³) | 5.51 | 2.24 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.07 | 2.53 |
| Insolation (S⊕) | 1.00 | 136.34 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 121786630
Gaia DR2
Gaia DR2 2101230049979183232
Gaia DR3
Gaia DR3 2101230049979183232
System
Kepler-319
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.94 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0690 AU.
Transit Fingerprint
Depth
0.087 %
Duration
1.791 h
Impact parameter b
0.130
Rp / R★
0.026770
Transit midpoint (BJD)
2,454,970.5429
Photometric dip
Transit produces a flux drop of 867 ppm lasting ≈ 1.79 h.
Extended Orbital Architecture
Planet / star radius ratio
0.026770
Semi-major axis / stellar radius
30.380
Impact parameter (b)
0.130
Transit mid-time (BJD)
2,454,970.5429
Angular separation (arcsec)
0.13700
Eq. Temperature
876K
(603 °C)
Insolation (S⊕)
136.34
Earth = 1.00
Earth Similarity (ESI)
0.283
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-319
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,526 K — cooler than the Sun (5,778 K)
Estimated Age
1.07 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.903 R☉
Stellar Mass
0.933 M☉
Metallicity [Fe/H]
0.06
Extended Stellar Properties
Surface gravity (log g)
4.487 dex
Stellar density
1.530 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.958 mas
Total Proper Motion
6.455 mas/yr
PM Right Ascension
2.95 mas/yr
PM Declination
-5.74 mas/yr
Galactic Cartesian (pc)
x = 0.248 · y = -0.728 · z = 0.640
Equatorial (J2000)
RA 288.81198° · Dec 39.77064°
Galactic ℓ, b
71.322° · 12.754°
Ecliptic λ, β
300.962° · 61.203°
HTM-20 index
-96345353
Similar Worlds
Kepler-945 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.63 R⊕ · 5,385.7 ly
Kepler-1241 b
Sub-Neptune · G-type yellow (Sun-like)
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Kepler-525 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.63 R⊕ · 3,238.2 ly
Kepler-581 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.63 R⊕ · 2,295.3 ly
Kepler-221 e
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.63 R⊕ · 1,256.5 ly
K2-292 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.63 R⊕ · 372.8 ly