Key parameters at a glance
- A radius of 1.41 Earth radii
- A mass of 2.57 Earth masses
- Surface gravity around 1.29 g
- An orbital period of 7.011 days
- Semi-major axis 0.0670 AU
- Equilibrium temperature 738 K (465 °C)
- Distance from Earth 982.33 light-years
- Earth Similarity Index 0.418
- Travel time at Voyager 1 speed 17,323,326 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-141
Kepler-141 c 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-141 b | Rocky Terrestrial | 0.69 | 0.26 | 3.108 | 968 | 2014 |
| Kepler-141 c this | Super-Earth | 1.41 | 2.57 | 7.011 | 738 | 2014 |
Kepler-141 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#902of 1176
top 76.6%
This planet
1.41R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-141 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.41 | 11.21 |
| Mass (M⊕) | 1.00 | 2.57 | 317.83 |
| Density (g/cm³) | 5.51 | 5.04 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.29 | 2.53 |
| Insolation (S⊕) | 1.00 | 77.41 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 273681580
Gaia DR2
Gaia DR2 2086455740440489472
Gaia DR3
Gaia DR3 2086455740440489472
System
Kepler-141
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 7.01 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0670 AU.
Transit Fingerprint
Depth
0.035 %
Duration
2.986 h
Impact parameter b
0.310
Rp / R★
0.017900
Transit midpoint (BJD)
2,455,007.5760
Photometric dip
Transit produces a flux drop of 348 ppm lasting ≈ 2.99 h.
Extended Orbital Architecture
Planet / star radius ratio
0.017900
Semi-major axis / stellar radius
13.300
Impact parameter (b)
0.310
Transit mid-time (BJD)
2,455,007.5760
Angular separation (arcsec)
0.22200
Eq. Temperature
738K
(465 °C)
Insolation (S⊕)
77.41
Earth = 1.00
Earth Similarity (ESI)
0.418
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
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-141
Spectral Class
K-type orange
Effective Temperature
4,910 K — cooler than the Sun (5,778 K)
Estimated Age
12.39 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.787 R☉
Stellar Mass
0.878 M☉
Metallicity [Fe/H]
0.26
Extended Stellar Properties
Surface gravity (log g)
4.566 dex
Stellar density
1.800 g/cm³
Systemic radial velocity
-20.11 km/s
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.291 mas
Total Proper Motion
25.559 mas/yr
PM Right Ascension
-20.12 mas/yr
PM Declination
-15.76 mas/yr
Galactic Cartesian (pc)
x = 0.315 · y = -0.594 · z = 0.740
Equatorial (J2000)
RA 297.97073° · Dec 47.73160°
Galactic ℓ, b
81.609° · 10.450°
Ecliptic λ, β
321.526° · 66.239°
HTM-20 index
1205525749
Similar Worlds
Kepler-1604 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · 1,765.1 ly
Kepler-237 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · 2,145.5 ly
Kepler-62 f
Super-Earth · K-type orange
Radius 1.41 R⊕ · 981.3 ly
Kepler-1848 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · 1,010.1 ly
Kepler-1813 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · —
Kepler-1038 c
Super-Earth · K-type orange
Radius 1.42 R⊕ · 1,905.2 ly