Key parameters at a glance

A radius of 2.20 Earth radii
A mass of 5.49 Earth masses
Surface gravity around 1.13 g
An orbital period of 16.057 days
Semi-major axis 0.1199 AU
Equilibrium temperature 645 K (372 °C)
Distance from Earth 4,018.86 light-years
Earth Similarity Index 0.411
Travel time at Voyager 1 speed 70,872,621 years

Kepler-1862 b Planet Profile

Physical Specs

Radius

2.20 R⊕

Radius (Jupiter)

0.197 R♃

Mass

5.49 M⊕

Mass (Jupiter)

0.017 M♃

Density

2.82 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.411

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

#1672of 1978

top 84.5%

This planet

2.20R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

HD 110067 b 2.20 R⊕ Kepler-169 e 2.20 R⊕ Kepler-122 d 2.20 R⊕

Metric	Earth	Kepler-1862 b	Jupiter
Radius (R⊕)	1.00	2.20	11.21
Mass (M⊕)	1.00	5.49	317.83
Density (g/cm³)	5.51	2.82	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	41.04	0.037

Star Catalogue Identifiers

TIC

TIC 27913951

Gaia DR2

Gaia DR2 2086847785054193792

Gaia DR3

Gaia DR3 2086847785054193792

System

Kepler-1862

Percentile among Sub-Neptune cohort

Radius 2.203 R⊕ · percentile 15 / cohort 1978

Mass 5.490 M⊕ · percentile 16 / cohort 1978

Orbital period 16.06 d · percentile 54 / cohort 1946

Distance 1,232.19 pc · percentile 87 / cohort 1975

ESI 0.411 · percentile 55 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

16.057 days

Semi-major axis

0.1199 AU

Eccentricity

0.000

Inclination

87.20 °

Year Length

A year here lasts approximately 16.06 Earth days (4.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1199 AU.

Transit Fingerprint

Depth

0.058 %

Duration

3.546 h

Impact parameter b

1.695

Rp / R★

0.025772

Transit midpoint (BJD)

2,454,965.3936

Photometric dip

Transit produces a flux drop of 575 ppm lasting ≈ 3.55 h.

Extended Orbital Architecture

Planet / star radius ratio

0.025772

Semi-major axis / stellar radius

7.830

Impact parameter (b)

1.695

Transit mid-time (BJD)

2,454,965.3936

Angular separation (arcsec)

0.09730

Eq. Temperature

645K

(372 °C)

Insolation (S⊕)

41.04

Earth = 1.00

Earth Similarity (ESI)

0.411

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-1862

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,644 K — cooler than the Sun (5,778 K)

Estimated Age

0.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.806 R☉

Stellar Mass

0.900 M☉

Metallicity [Fe/H]

-0.24

Extended Stellar Properties

Surface gravity (log g)

4.575 dex

Stellar density

0.434 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,232.19 parsec

Light-years 4,018.86 ly

V-band magnitude

15.85 mag

Voyager-speed travel 70,872,621 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.784 mas

Total Proper Motion

1.563 mas/yr

PM Right Ascension

0.92 mas/yr

PM Declination

-1.27 mas/yr

Galactic Cartesian (pc)

x = 0.293 · y = -0.581 · z = 0.759

Equatorial (J2000)

RA 296.75336° · Dec 49.37807°

Galactic ℓ, b

82.691° · 11.945°

Ecliptic λ, β

321.694° · 68.071°

HTM-20 index

1885357749