Key parameters at a glance
- A radius of 1.99 Earth radii
- A mass of 4.62 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 7.752 days
- Semi-major axis 0.0814 AU
- Equilibrium temperature 852 K (579 °C)
- Distance from Earth 2,481.09 light-years
- Earth Similarity Index 0.322
- Travel time at Voyager 1 speed 43,754,104 years
1 sibling around Kepler-625
Kepler-625 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-625 c | Rocky Terrestrial | 1.05 | 1.16 | 4.165 | 1,048 | 2016 |
| Kepler-625 b this | Super-Earth | 1.99 | 4.62 | 7.752 | 852 | 2016 |
Kepler-625 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#4of 1176
top 0.3%
This planet
1.99R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-625 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.99 | 11.21 |
| Mass (M⊕) | 1.00 | 4.62 | 317.83 |
| Density (g/cm³) | 5.51 | 3.22 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 407.83 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137414304
Gaia DR2
Gaia DR2 2053177406120368896
Gaia DR3
Gaia DR3 2053177406120368896
System
Kepler-625
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 7.75 Earth days (2.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0814 AU.
Transit Fingerprint
Depth
0.041 %
Duration
3.485 h
Impact parameter b
0.540
Rp / R★
0.018523
Transit midpoint (BJD)
2,455,009.1727
Photometric dip
Transit produces a flux drop of 406 ppm lasting ≈ 3.48 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018523
Semi-major axis / stellar radius
16.690
Impact parameter (b)
0.540
Transit mid-time (BJD)
2,455,009.1727
Angular separation (arcsec)
0.10700
Eq. Temperature
852K
(579 °C)
Insolation (S⊕)
407.83
Earth = 1.00
Earth Similarity (ESI)
0.322
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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-625
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,789 K — hotter than the Sun (5,778 K)
Estimated Age
1.51 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.960 R☉
Stellar Mass
1.040 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
4.490 dex
Stellar density
0.460 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.286 mas
Total Proper Motion
9.185 mas/yr
PM Right Ascension
3.48 mas/yr
PM Declination
-8.50 mas/yr
Galactic Cartesian (pc)
x = 0.290 · y = -0.713 · z = 0.638
Equatorial (J2000)
RA 292.15047° · Dec 39.63753°
Galactic ℓ, b
72.340° · 10.383°
Ecliptic λ, β
305.928° · 60.343°
HTM-20 index
1482959535
Similar Worlds
Kepler-1144 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 3,720.0 ly
Kepler-181 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 1,987.2 ly
Kepler-1457 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 2,902.4 ly
Kepler-142 b
Super-Earth · G-type yellow (Sun-like)
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Kepler-526 b
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Radius 1.99 R⊕ · 2,172.7 ly
Kepler-60 d
Super-Earth · G-type yellow (Sun-like)
Radius 1.99 R⊕ · 3,343.4 ly