Key parameters at a glance
- A radius of 1.33 Earth radii
- A mass of 2.33 Earth masses
- Surface gravity around 1.32 g
- An orbital period of 2.237 days
- Semi-major axis 0.0325 AU
- Equilibrium temperature 1,160 K (887 °C)
- Distance from Earth 1,930.11 light-years
- Earth Similarity Index 0.263
- Travel time at Voyager 1 speed 34,037,540 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-707 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1022of 1176
top 86.8%
This planet
1.33R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-707 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.33 | 11.21 |
| Mass (M⊕) | 1.00 | 2.33 | 317.83 |
| Density (g/cm³) | 5.51 | 5.44 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.32 | 2.53 |
| Insolation (S⊕) | 1.00 | 336.67 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 159217349
Gaia DR2
Gaia DR2 2101898205154183296
Gaia DR3
Gaia DR3 2101898205154183296
System
Kepler-707
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.24 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0325 AU.
Transit Fingerprint
Depth
0.033 %
Duration
1.824 h
Impact parameter b
0.961
Rp / R★
0.016348
Transit midpoint (BJD)
2,455,003.8175
Photometric dip
Transit produces a flux drop of 331 ppm lasting ≈ 1.82 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016348
Semi-major axis / stellar radius
9.527
Impact parameter (b)
0.961
Transit mid-time (BJD)
2,455,003.8175
Angular separation (arcsec)
0.05490
Eq. Temperature
1,160K
(887 °C)
Insolation (S⊕)
336.67
Earth = 1.00
Earth Similarity (ESI)
0.263
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-707
Spectral Class
K-type orange
Effective Temperature
5,099 K — cooler than the Sun (5,778 K)
Estimated Age
4.90 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.760 R☉
Stellar Mass
0.800 M☉
Metallicity [Fe/H]
-0.12
Extended Stellar Properties
Surface gravity (log g)
4.580 dex
Stellar density
3.233 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.661 mas
Total Proper Motion
2.004 mas/yr
PM Right Ascension
-2.00 mas/yr
PM Declination
0.09 mas/yr
Galactic Cartesian (pc)
x = 0.254 · y = -0.697 · z = 0.671
Equatorial (J2000)
RA 290.00756° · Dec 42.11647°
Galactic ℓ, b
73.894° · 12.924°
Ecliptic λ, β
304.247° · 63.196°
HTM-20 index
453924847
Similar Worlds
K2-268 e
Super-Earth · K-type orange
Radius 1.33 R⊕ · 1,069.1 ly
Kepler-220 e
Super-Earth · K-type orange
Radius 1.33 R⊕ · 558.1 ly
K2-148 b
Super-Earth · K-type orange
Radius 1.33 R⊕ · 405.9 ly
Kepler-1190 b
Super-Earth · K-type orange
Radius 1.33 R⊕ · 1,117.1 ly
Kepler-1987 c
Super-Earth · K-type orange
Radius 1.33 R⊕ · 1,942.9 ly
K2-211 b
Super-Earth · K-type orange
Radius 1.33 R⊕ · 888.1 ly