Key parameters at a glance
- A radius of 1.84 Earth radii
- A mass of 4.06 Earth masses
- Surface gravity around 1.19 g
- An orbital period of 6.566 days
- Semi-major axis 0.0635 AU
- Equilibrium temperature 777 K (504 °C)
- Distance from Earth 1,568.38 light-years
- Earth Similarity Index 0.364
- Travel time at Voyager 1 speed 27,658,434 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-1315
Kepler-1315 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-1315 b | Super-Earth | 1.38 | 2.48 | 0.843 | 1,541 | 2016 |
| Kepler-1315 c this | Super-Earth | 1.84 | 4.06 | 6.566 | 777 | 2021 |
Kepler-1315 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#199of 1176
top 16.8%
This planet
1.84R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1315 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.84 | 11.21 |
| Mass (M⊕) | 1.00 | 4.06 | 317.83 |
| Density (g/cm³) | 5.51 | 3.56 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.19 | 2.53 |
| Insolation (S⊕) | 1.00 | 57.60 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 271881331
Gaia DR2
Gaia DR2 2080388566557873280
Gaia DR3
Gaia DR3 2080388566557873280
System
Kepler-1315
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.57 Earth days (1.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0635 AU.
Transit Fingerprint
Depth
0.040 %
Duration
1.732 h
Impact parameter b
0.331
Rp / R★
0.018384
Transit midpoint (BJD)
2,454,967.4948
Photometric dip
Transit produces a flux drop of 402 ppm lasting ≈ 1.73 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018384
Semi-major axis / stellar radius
20.490
Impact parameter (b)
0.331
Transit mid-time (BJD)
2,454,967.4948
Angular separation (arcsec)
0.13200
Eq. Temperature
777K
(504 °C)
Insolation (S⊕)
57.60
Earth = 1.00
Earth Similarity (ESI)
0.364
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
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-1315
Spectral Class
K-type orange
Effective Temperature
4,818 K — cooler than the Sun (5,778 K)
Estimated Age
1.62 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.856 R☉
Stellar Mass
0.809 M☉
Metallicity [Fe/H]
0.56
Extended Stellar Properties
Surface gravity (log g)
4.481 dex
Stellar density
3.774 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.051 mas
Total Proper Motion
17.628 mas/yr
PM Right Ascension
17.59 mas/yr
PM Declination
-1.17 mas/yr
Galactic Cartesian (pc)
x = 0.302 · y = -0.625 · z = 0.720
Equatorial (J2000)
RA 295.82157° · Dec 46.05306°
Galactic ℓ, b
79.395° · 10.939°
Ecliptic λ, β
316.506° · 65.376°
HTM-20 index
-1990228182
Similar Worlds
WASP-132 c
Super-Earth · K-type orange
Radius 1.84 R⊕ · 400.9 ly
Kepler-1651 b
Super-Earth · K-type orange
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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
Kepler-354 b
Super-Earth · K-type orange
Radius 1.84 R⊕ · 1,807.1 ly
Kepler-331 c
Super-Earth · K-type orange
Radius 1.84 R⊕ · 1,892.1 ly