Key parameters at a glance
- A radius of 1.29 Earth radii
- A mass of 2.20 Earth masses
- Surface gravity around 1.33 g
- An orbital period of 6.246 days
- Semi-major axis 0.0607 AU
- Equilibrium temperature 731 K (458 °C)
- Distance from Earth 1,975.30 light-years
- Earth Similarity Index 0.430
- Travel time at Voyager 1 speed 34,834,446 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1953 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1114of 1176
top 94.6%
This planet
1.29R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1953 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.29 | 11.21 |
| Mass (M⊕) | 1.00 | 2.20 | 317.83 |
| Density (g/cm³) | 5.51 | 5.69 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.33 | 2.53 |
| Insolation (S⊕) | 1.00 | 67.62 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158625687
Gaia DR2
Gaia DR2 2130377106797534336
Gaia DR3
Gaia DR3 2130377106797534336
System
Kepler-1953
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.25 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0607 AU.
Transit Fingerprint
Depth
0.021 %
Duration
2.372 h
Impact parameter b
0.271
Rp / R★
0.014123
Transit midpoint (BJD)
2,454,970.1636
Photometric dip
Transit produces a flux drop of 212 ppm lasting ≈ 2.37 h.
Extended Orbital Architecture
Planet / star radius ratio
0.014123
Semi-major axis / stellar radius
19.670
Impact parameter (b)
0.271
Transit mid-time (BJD)
2,454,970.1636
Angular separation (arcsec)
0.10000
Eq. Temperature
731K
(458 °C)
Insolation (S⊕)
67.62
Earth = 1.00
Earth Similarity (ESI)
0.430
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
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-1953
Spectral Class
K-type orange
Effective Temperature
4,858 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.707 R☉
Stellar Mass
0.786 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.622 dex
Stellar density
1.971 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.623 mas
Total Proper Motion
4.951 mas/yr
PM Right Ascension
-4.51 mas/yr
PM Declination
-2.05 mas/yr
Galactic Cartesian (pc)
x = 0.212 · y = -0.655 · z = 0.725
Equatorial (J2000)
RA 287.96810° · Dec 46.47060°
Galactic ℓ, b
77.394° · 16.023°
Ecliptic λ, β
304.192° · 67.788°
HTM-20 index
-1715613904
Similar Worlds
Kepler-1945 b
Super-Earth · K-type orange
Radius 1.29 R⊕ · —
Kepler-211 c
Super-Earth · K-type orange
Radius 1.29 R⊕ · 1,009.0 ly
Kepler-1037 b
Super-Earth · K-type orange
Radius 1.28 R⊕ · 1,457.6 ly
Kepler-787 b
Super-Earth · K-type orange
Radius 1.28 R⊕ · 1,642.4 ly
Kepler-776 b
Super-Earth · K-type orange
Radius 1.28 R⊕ · 2,374.1 ly
TOI-431 b
Super-Earth · K-type orange
Radius 1.28 R⊕ · 106.2 ly