Key parameters at a glance
- A radius of 1.56 Earth radii
- A mass of 3.05 Earth masses
- Surface gravity around 1.25 g
- An orbital period of 0.569 days
- Semi-major axis 0.0128 AU
- Equilibrium temperature 1,796 K (1523 °C)
- Distance from Earth 2,375.40 light-years
- Earth Similarity Index 0.151
- Travel time at Voyager 1 speed 41,890,246 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1317 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#636of 1176
top 54.0%
This planet
1.56R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1317 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.56 | 11.21 |
| Mass (M⊕) | 1.00 | 3.05 | 317.83 |
| Density (g/cm³) | 5.51 | 4.41 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.25 | 2.53 |
| Insolation (S⊕) | 1.00 | 2,413.26 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 63005467
Gaia DR2
Gaia DR2 2101746579928077440
Gaia DR3
Gaia DR3 2101746579928077440
System
Kepler-1317
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts roughly 13.7 hours long on a nearly circular orbit at a mean orbital distance of 0.0128 AU.
Transit Fingerprint
Depth
0.038 %
Duration
1.215 h
Impact parameter b
0.012
Rp / R★
0.017510
Transit midpoint (BJD)
2,454,965.0488
Photometric dip
Transit produces a flux drop of 378 ppm lasting ≈ 1.22 h.
Extended Orbital Architecture
Planet / star radius ratio
0.017510
Semi-major axis / stellar radius
3.686
Impact parameter (b)
0.012
Transit mid-time (BJD)
2,454,965.0488
Angular separation (arcsec)
0.01760
Eq. Temperature
1,796K
(1523 °C)
Insolation (S⊕)
2,413.26
Earth = 1.00
Earth Similarity (ESI)
0.151
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-1317
Spectral Class
K-type orange
Effective Temperature
5,144 K — cooler than the Sun (5,778 K)
Estimated Age
4.79 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.790 R☉
Stellar Mass
0.830 M☉
Metallicity [Fe/H]
-0.01
Extended Stellar Properties
Surface gravity (log g)
4.570 dex
Stellar density
2.928 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.345 mas
Total Proper Motion
0.504 mas/yr
PM Right Ascension
-0.32 mas/yr
PM Declination
-0.39 mas/yr
Galactic Cartesian (pc)
x = 0.273 · y = -0.690 · z = 0.671
Equatorial (J2000)
RA 291.61188° · Dec 42.11598°
Galactic ℓ, b
74.418° · 11.849°
Ecliptic λ, β
306.739° · 62.825°
HTM-20 index
-377899784
Similar Worlds
TOI-5736 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 301.2 ly
Kepler-190 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 1,413.5 ly
TOI-238 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 262.7 ly
K2-383 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 664.7 ly
K2-136 d
Super-Earth · K-type orange
Radius 1.57 R⊕ · 193.2 ly
K2-165 c
Super-Earth · K-type orange
Radius 1.55 R⊕ · 439.0 ly