Key parameters at a glance
- A radius of 1.73 Earth radii
- A mass of 3.64 Earth masses
- Surface gravity around 1.22 g
- An orbital period of 3.764 days
- Semi-major axis 0.0440 AU
- Equilibrium temperature 908 K (635 °C)
- Distance from Earth 2,326.04 light-years
- Earth Similarity Index 0.316
- Travel time at Voyager 1 speed 41,019,660 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1059 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#356of 1176
top 30.2%
This planet
1.73R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1059 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.73 | 11.21 |
| Mass (M⊕) | 1.00 | 3.64 | 317.83 |
| Density (g/cm³) | 5.51 | 3.86 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.22 | 2.53 |
| Insolation (S⊕) | 1.00 | 174.07 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 121943952
Gaia DR2
Gaia DR2 2102249400337907456
Gaia DR3
Gaia DR3 2102249400337907456
System
Kepler-1059
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.76 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0440 AU.
Transit Fingerprint
Depth
0.060 %
Duration
2.060 h
Impact parameter b
0.287
Rp / R★
0.021917
Transit midpoint (BJD)
2,454,965.3510
Photometric dip
Transit produces a flux drop of 599 ppm lasting ≈ 2.06 h.
Extended Orbital Architecture
Planet / star radius ratio
0.021917
Semi-major axis / stellar radius
14.080
Impact parameter (b)
0.287
Transit mid-time (BJD)
2,454,965.3510
Angular separation (arcsec)
0.06170
Eq. Temperature
908K
(635 °C)
Insolation (S⊕)
174.07
Earth = 1.00
Earth Similarity (ESI)
0.316
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-1059
Spectral Class
K-type orange
Effective Temperature
4,906 K — cooler than the Sun (5,778 K)
Estimated Age
5.37 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.720 R☉
Stellar Mass
0.750 M☉
Metallicity [Fe/H]
-0.15
Extended Stellar Properties
Surface gravity (log g)
4.610 dex
Stellar density
3.726 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.374 mas
Total Proper Motion
6.627 mas/yr
PM Right Ascension
1.32 mas/yr
PM Declination
-6.50 mas/yr
Galactic Cartesian (pc)
x = 0.246 · y = -0.705 · z = 0.665
Equatorial (J2000)
RA 289.22021° · Dec 41.70644°
Galactic ℓ, b
73.259° · 13.283°
Ecliptic λ, β
302.743° · 62.977°
HTM-20 index
-1476621690
Similar Worlds
K2-148 c
Super-Earth · K-type orange
Radius 1.73 R⊕ · 405.9 ly
K2-199 b
Super-Earth · K-type orange
Radius 1.73 R⊕ · 350.7 ly
Kepler-327 d
Super-Earth · K-type orange
Radius 1.73 R⊕ · 789.3 ly
Kepler-1608 b
Super-Earth · K-type orange
Radius 1.73 R⊕ · 2,713.6 ly
Kepler-1350 c
Super-Earth · K-type orange
Radius 1.73 R⊕ · 1,111.2 ly
Kepler-1856 b
Super-Earth · K-type orange
Radius 1.73 R⊕ · 2,768.3 ly