Key parameters at a glance
- A radius of 1.40 Earth radii
- A mass of 2.54 Earth masses
- Surface gravity around 1.30 g
- An orbital period of 9.082 days
- Semi-major axis 0.0815 AU
- Equilibrium temperature 734 K (461 °C)
- Distance from Earth 2,786.29 light-years
- Earth Similarity Index 0.421
- Travel time at Voyager 1 speed 49,136,142 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1301 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#923of 1176
top 78.4%
This planet
1.40R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1301 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.40 | 11.21 |
| Mass (M⊕) | 1.00 | 2.54 | 317.83 |
| Density (g/cm³) | 5.51 | 5.09 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.30 | 2.53 |
| Insolation (S⊕) | 1.00 | 76.14 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158278132
Gaia DR2
Gaia DR2 2105463135385330944
Gaia DR3
Gaia DR3 2105463135385330944
System
Kepler-1301
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 9.08 Earth days (2.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0815 AU.
Transit Fingerprint
Depth
0.030 %
Duration
2.025 h
Impact parameter b
0.262
Rp / R★
0.016335
Transit midpoint (BJD)
2,454,972.6502
Photometric dip
Transit produces a flux drop of 297 ppm lasting ≈ 2.03 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016335
Semi-major axis / stellar radius
34.800
Impact parameter (b)
0.262
Transit mid-time (BJD)
2,454,972.6502
Angular separation (arcsec)
0.09540
Eq. Temperature
734K
(461 °C)
Insolation (S⊕)
76.14
Earth = 1.00
Earth Similarity (ESI)
0.421
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
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-1301
Spectral Class
K-type orange
Effective Temperature
5,188 K — cooler than the Sun (5,778 K)
Estimated Age
4.90 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.810 R☉
Stellar Mass
0.850 M☉
Metallicity [Fe/H]
0.01
Extended Stellar Properties
Surface gravity (log g)
4.560 dex
Stellar density
8.941 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.142 mas
Total Proper Motion
4.601 mas/yr
PM Right Ascension
2.35 mas/yr
PM Declination
3.95 mas/yr
Galactic Cartesian (pc)
x = 0.211 · y = -0.707 · z = 0.675
Equatorial (J2000)
RA 286.60418° · Dec 42.44033°
Galactic ℓ, b
73.143° · 15.356°
Ecliptic λ, β
298.998° · 64.217°
HTM-20 index
1239808832
Similar Worlds
K2-85 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 317.1 ly
Kepler-329 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 1,434.2 ly
Kepler-1229 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 865.9 ly
Kepler-326 c
Super-Earth · K-type orange
Radius 1.40 R⊕ · 1,590.6 ly
Kepler-1145 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 2,256.9 ly
Kepler-716 c
Super-Earth · K-type orange
Radius 1.39 R⊕ · 2,071.1 ly