Key parameters at a glance
- A radius of 1.61 Earth radii
- A mass of 3.22 Earth masses
- Surface gravity around 1.24 g
- An orbital period of 3.254 days
- Semi-major axis 0.0450 AU
- Equilibrium temperature 1,301 K (1028 °C)
- Distance from Earth 1,904.29 light-years
- Earth Similarity Index 0.218
- Travel time at Voyager 1 speed 33,582,173 years
1 sibling around Kepler-140
Kepler-140 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-140 b this | Super-Earth | 1.61 | 3.22 | 3.254 | 1,301 | 2014 |
| Kepler-140 c | Super-Earth | 1.80 | 3.89 | 91.353 | 428 | 2014 |
Kepler-140 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#550of 1176
top 46.7%
This planet
1.61R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-140 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.61 | 11.21 |
| Mass (M⊕) | 1.00 | 3.22 | 317.83 |
| Density (g/cm³) | 5.51 | 4.24 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.24 | 2.53 |
| Insolation (S⊕) | 1.00 | 848.70 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158487888
Gaia DR2
Gaia DR2 2130443730330509312
Gaia DR3
Gaia DR3 2130443730330509312
System
Kepler-140
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.25 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0450 AU.
Transit Fingerprint
Depth
0.016 %
Duration
2.978 h
Impact parameter b
0.050
Rp / R★
0.011619
Transit midpoint (BJD)
2,455,005.6615
Photometric dip
Transit produces a flux drop of 160 ppm lasting ≈ 2.98 h.
Extended Orbital Architecture
Planet / star radius ratio
0.011619
Semi-major axis / stellar radius
8.408
Impact parameter (b)
0.050
Transit mid-time (BJD)
2,455,005.6615
Angular separation (arcsec)
0.07710
Eq. Temperature
1,301K
(1028 °C)
Insolation (S⊕)
848.70
Earth = 1.00
Earth Similarity (ESI)
0.218
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-140
Spectral Class
F-type yellow-white
Effective Temperature
6,077 K — hotter than the Sun (5,778 K)
Estimated Age
0.88 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.288 R☉
Stellar Mass
1.044 M☉
Metallicity [Fe/H]
-0.04
Extended Stellar Properties
Surface gravity (log g)
4.272 dex
Stellar density
0.650 g/cm³
Systemic radial velocity
-33.41 km/s
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.684 mas
Total Proper Motion
19.524 mas/yr
PM Right Ascension
-10.48 mas/yr
PM Declination
-16.48 mas/yr
Galactic Cartesian (pc)
x = 0.204 · y = -0.654 · z = 0.729
Equatorial (J2000)
RA 287.36941° · Dec 46.76815°
Galactic ℓ, b
77.516° · 16.516°
Ecliptic λ, β
303.409° · 68.202°
HTM-20 index
-1671866659
Similar Worlds
Kepler-1584 b
Super-Earth · F-type yellow-white
Radius 1.61 R⊕ · 4,619.4 ly
Kepler-58 e
Super-Earth · F-type yellow-white
Radius 1.61 R⊕ · 3,161.3 ly
Kepler-1620 b
Super-Earth · F-type yellow-white
Radius 1.61 R⊕ · 2,919.3 ly
Kepler-750 c
Super-Earth · F-type yellow-white
Radius 1.62 R⊕ · 4,227.0 ly
Kepler-394 b
Super-Earth · F-type yellow-white
Radius 1.60 R⊕ · 3,453.1 ly
Kepler-864 c
Super-Earth · F-type yellow-white
Radius 1.62 R⊕ · 6,597.8 ly