Key parameters at a glance
- A radius of 1.26 Earth radii
- A mass of 2.13 Earth masses
- Surface gravity around 1.34 g
- An orbital period of 4.418 days
- Semi-major axis 0.0470 AU
- Equilibrium temperature 790 K (517 °C)
- Distance from Earth 1,195.87 light-years
- Earth Similarity Index 0.397
- Travel time at Voyager 1 speed 21,089,176 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1029 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1149of 1176
top 97.6%
This planet
1.26R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1029 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.26 | 11.21 |
| Mass (M⊕) | 1.00 | 2.13 | 317.83 |
| Density (g/cm³) | 5.51 | 5.85 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.34 | 2.53 |
| Insolation (S⊕) | 1.00 | 92.16 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137409907
Gaia DR2
Gaia DR2 2101670026430316416
Gaia DR3
Gaia DR3 2101670026430316416
System
Kepler-1029
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.42 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0470 AU.
Transit Fingerprint
Depth
0.028 %
Duration
1.916 h
Impact parameter b
0.920
Rp / R★
0.015203
Transit midpoint (BJD)
2,454,966.9612
Photometric dip
Transit produces a flux drop of 279 ppm lasting ≈ 1.92 h.
Extended Orbital Architecture
Planet / star radius ratio
0.015203
Semi-major axis / stellar radius
17.770
Impact parameter (b)
0.920
Transit mid-time (BJD)
2,454,966.9612
Angular separation (arcsec)
0.12800
Eq. Temperature
790K
(517 °C)
Insolation (S⊕)
92.16
Earth = 1.00
Earth Similarity (ESI)
0.397
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-1029
Spectral Class
K-type orange
Effective Temperature
5,030 K — cooler than the Sun (5,778 K)
Estimated Age
4.07 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.770 R☉
Stellar Mass
0.820 M☉
Metallicity [Fe/H]
0.01
Extended Stellar Properties
Surface gravity (log g)
4.580 dex
Stellar density
5.439 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.699 mas
Total Proper Motion
21.234 mas/yr
PM Right Ascension
-15.38 mas/yr
PM Declination
-14.64 mas/yr
Galactic Cartesian (pc)
x = 0.282 · y = -0.693 · z = 0.663
Equatorial (J2000)
RA 292.13287° · Dec 41.54748°
Galactic ℓ, b
74.073° · 11.250°
Ecliptic λ, β
307.140° · 62.162°
HTM-20 index
-294382278
Similar Worlds
Kepler-755 c
Super-Earth · K-type orange
Radius 1.26 R⊕ · 1,301.5 ly
TOI-5789 b
Super-Earth · K-type orange
Radius 1.26 R⊕ · 66.7 ly
Kepler-211 b
Super-Earth · K-type orange
Radius 1.26 R⊕ · 1,009.0 ly
Kepler-1697 b
Super-Earth · K-type orange
Radius 1.26 R⊕ · 808.1 ly
Kepler-1688 b
Super-Earth · K-type orange
Radius 1.26 R⊕ · 1,850.8 ly
K2-203 b
Super-Earth · K-type orange
Radius 1.27 R⊕ · 541.9 ly