Key parameters at a glance

A radius of 3.92 Earth radii
A mass of 14.60 Earth masses
Surface gravity around 0.95 g
An orbital period of 101.133 days
Semi-major axis 0.4137 AU
Equilibrium temperature 380 K (107 °C)
Distance from Earth 3,293.75 light-years
Earth Similarity Index 0.520
Travel time at Voyager 1 speed 58,085,306 years

Kepler-1810 b Planet Profile

Physical Specs

Radius

3.92 R⊕

Radius (Jupiter)

0.350 R♃

Mass

14.60 M⊕

Mass (Jupiter)

0.046 M♃

Density

1.33 g/cm³

Surface Gravity

0.95 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.520

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#19of 1978

top 0.9%

This planet

3.92R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

OGLE-2017-BLG-1691L b 3.92 R⊕ GJ 876 e 3.92 R⊕ Kepler-1024 b 3.91 R⊕

Metric	Earth	Kepler-1810 b	Jupiter
Radius (R⊕)	1.00	3.92	11.21
Mass (M⊕)	1.00	14.60	317.83
Density (g/cm³)	5.51	1.33	1.33
Surface Gravity (g)	1.00	0.95	2.53
Insolation (S⊕)	1.00	4.91	0.037

Star Catalogue Identifiers

TIC

TIC 351057636

Gaia DR2

Gaia DR2 2052658367909936768

Gaia DR3

Gaia DR3 2052658367909936768

System

Kepler-1810

Percentile among Sub-Neptune cohort

Radius 3.918 R⊕ · percentile 99 / cohort 1978

Mass 14.600 M⊕ · percentile 92 / cohort 1978

Orbital period 101.13 d · percentile 94 / cohort 1946

Distance 1,009.87 pc · percentile 78 / cohort 1975

ESI 0.520 · percentile 73 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

101.133 days

Semi-major axis

0.4137 AU

Eccentricity

0.000

Inclination

89.98 °

Year Length

A year here lasts approximately 101.13 Earth days (27.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4137 AU.

Transit Fingerprint

Depth

0.150 %

Duration

4.366 h

Impact parameter b

0.203

Rp / R★

0.034853

Transit midpoint (BJD)

2,455,043.1832

Photometric dip

Transit produces a flux drop of 1,503 ppm lasting ≈ 4.37 h.

Extended Orbital Architecture

Planet / star radius ratio

0.034853

Semi-major axis / stellar radius

182.900

Impact parameter (b)

0.203

Transit mid-time (BJD)

2,455,043.1832

Angular separation (arcsec)

0.41000

Eq. Temperature

380K

(107 °C)

Insolation (S⊕)

4.91

Earth = 1.00

Earth Similarity (ESI)

0.520

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

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at Kepler (12 shown).

Kepler-1816 b · Super-Earth Kepler-1705 c · Sub-Neptune Kepler-1948 b · Rocky Terrestrial Kepler-196 d · Sub-Neptune Kepler-1853 b · Super-Earth Kepler-1840 b · Sub-Neptune Kepler-1881 b · Sub-Neptune Kepler-1858 b · Sub-Neptune Kepler-1874 b · Sub-Neptune Kepler-1802 c · Sub-Neptune Kepler-1749 b · Super-Earth Kepler-1849 b · Sub-Neptune

Host System: Kepler-1810

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,492 K — cooler than the Sun (5,778 K)

Estimated Age

4.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.016 R☉

Stellar Mass

0.921 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.389 dex

Stellar density

11.309 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,009.87 parsec

Light-years 3,293.75 ly

V-band magnitude

15.40 mag

Voyager-speed travel 58,085,306 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.962 mas

Total Proper Motion

13.293 mas/yr

PM Right Ascension

-3.80 mas/yr

PM Declination

-12.74 mas/yr

Galactic Cartesian (pc)

x = 0.292 · y = -0.731 · z = 0.617

Equatorial (J2000)

RA 291.81300° · Dec 38.08810°

Galactic ℓ, b

70.814° · 9.920°

Ecliptic λ, β

304.527° · 58.940°

HTM-20 index

1979465646