Key parameters at a glance

A radius of 1.16 Earth radii
A mass of 1.65 Earth masses
Surface gravity around 1.23 g
An orbital period of 9.887 days
Semi-major axis 0.0872 AU
Equilibrium temperature 768 K (495 °C)
Distance from Earth 2,219.76 light-years
Earth Similarity Index 0.415
Travel time at Voyager 1 speed 39,145,506 years

Kepler-1867 b Planet Profile

Physical Specs

Radius

1.16 R⊕

Radius (Jupiter)

0.103 R♃

Mass

1.65 M⊕

Mass (Jupiter)

0.005 M♃

Density

5.81 g/cm³

Surface Gravity

1.23 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.415

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

#157of 570

top 27.4%

This planet

1.16R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

OGLE-2013-BLG-0341L B b 1.16 R⊕ Kepler-316 c 1.16 R⊕ Kepler-363 b 1.16 R⊕

Metric	Earth	Kepler-1867 b	Jupiter
Radius (R⊕)	1.00	1.16	11.21
Mass (M⊕)	1.00	1.65	317.83
Density (g/cm³)	5.51	5.81	1.33
Surface Gravity (g)	1.00	1.23	2.53
Insolation (S⊕)	1.00	82.32	0.037

Star Catalogue Identifiers

TIC

TIC 271348323

Gaia DR2

Gaia DR2 2078080176257415168

Gaia DR3

Gaia DR3 2078080176257415168

System

Kepler-1867

Percentile among Rocky Terrestrial cohort

Radius 1.160 R⊕ · percentile 72 / cohort 570

Mass 1.650 M⊕ · percentile 66 / cohort 570

Orbital period 9.89 d · percentile 78 / cohort 567

Distance 680.58 pc · percentile 78 / cohort 566

ESI 0.415 · percentile 62 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

9.887 days

Semi-major axis

0.0872 AU

Eccentricity

0.000

Inclination

88.68 °

Year Length

A year here lasts approximately 9.89 Earth days (2.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0872 AU.

Transit Fingerprint

Depth

0.007 %

Duration

4.230 h

Impact parameter b

0.383

Rp / R★

0.007617

Transit midpoint (BJD)

2,454,972.5278

Photometric dip

Transit produces a flux drop of 68 ppm lasting ≈ 4.23 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007617

Semi-major axis / stellar radius

17.950

Impact parameter (b)

0.383

Transit mid-time (BJD)

2,454,972.5278

Angular separation (arcsec)

0.12800

Eq. Temperature

768K

(495 °C)

Insolation (S⊕)

82.32

Earth = 1.00

Earth Similarity (ESI)

0.415

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-1867

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,693 K — cooler than the Sun (5,778 K)

Estimated Age

0.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.816 R☉

Stellar Mass

0.911 M☉

Metallicity [Fe/H]

-0.24

Extended Stellar Properties

Surface gravity (log g)

4.570 dex

Stellar density

0.894 g/cm³

Metallicity ratio

[Fe/H]

Distance

680.58 parsec

Light-years 2,219.76 ly

V-band magnitude

13.55 mag

Voyager-speed travel 39,145,506 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.441 mas

Total Proper Motion

20.349 mas/yr

PM Right Ascension

-18.76 mas/yr

PM Declination

-7.88 mas/yr

Galactic Cartesian (pc)

x = 0.307 · y = -0.658 · z = 0.688

Equatorial (J2000)

RA 294.99710° · Dec 43.43587°

Galactic ℓ, b

76.763° · 10.231°

Ecliptic λ, β

312.886° · 63.201°

HTM-20 index

-1431432344