Key parameters at a glance
- A radius of 2.37 Earth radii
- A mass of 6.21 Earth masses
- Surface gravity around 1.11 g
- An orbital period of 2.935 days
- Semi-major axis 0.0377 AU
- Equilibrium temperature 1,022 K (749 °C)
- Distance from Earth 2,369.02 light-years
- Earth Similarity Index 0.249
- Travel time at Voyager 1 speed 41,777,684 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-1814
Kepler-1814 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-1814 c | Super-Earth | 1.76 | 3.75 | 0.626 | 1,711 | 2023 |
| Kepler-1814 b this | Sub-Neptune | 2.37 | 6.21 | 2.935 | 1,022 | 2021 |
Kepler-1814 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1389of 1978
top 70.2%
This planet
2.37R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1814 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.37 | 11.21 |
| Mass (M⊕) | 1.00 | 6.21 | 317.83 |
| Density (g/cm³) | 5.51 | 2.56 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.11 | 2.53 |
| Insolation (S⊕) | 1.00 | 216.90 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 399821831
Gaia DR2
Gaia DR2 2103845032226500352
Gaia DR3
Gaia DR3 2103845032226500352
System
Kepler-1814
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.94 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0377 AU.
Transit Fingerprint
Depth
0.108 %
Duration
1.504 h
Impact parameter b
0.084
Rp / R★
0.029179
Transit midpoint (BJD)
2,454,969.1849
Photometric dip
Transit produces a flux drop of 1,077 ppm lasting ≈ 1.50 h.
Extended Orbital Architecture
Planet / star radius ratio
0.029179
Semi-major axis / stellar radius
16.500
Impact parameter (b)
0.084
Transit mid-time (BJD)
2,454,969.1849
Angular separation (arcsec)
0.05180
Eq. Temperature
1,022K
(749 °C)
Insolation (S⊕)
216.90
Earth = 1.00
Earth Similarity (ESI)
0.249
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
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-1814
Spectral Class
K-type orange
Effective Temperature
4,922 K — cooler than the Sun (5,778 K)
Estimated Age
2.82 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.823 R☉
Stellar Mass
0.790 M☉
Metallicity [Fe/H]
0.20
Extended Stellar Properties
Surface gravity (log g)
4.505 dex
Stellar density
1.415 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.348 mas
Total Proper Motion
2.639 mas/yr
PM Right Ascension
-2.01 mas/yr
PM Declination
-1.71 mas/yr
Galactic Cartesian (pc)
x = 0.197 · y = -0.725 · z = 0.660
Equatorial (J2000)
RA 285.21668° · Dec 41.28244°
Galactic ℓ, b
71.620° · 15.863°
Ecliptic λ, β
296.083° · 63.350°
HTM-20 index
1897340358
Similar Worlds
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TOI-1782.01
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K2-233 d
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TOI-2443 b
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Kepler-1788 b
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Kepler-1214 b
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