Key parameters at a glance

A radius of 2.22 Earth radii
A mass of 5.56 Earth masses
Surface gravity around 1.13 g
An orbital period of 6.843 days
Semi-major axis 0.0678 AU
Equilibrium temperature 805 K (532 °C)
Distance from Earth 864.30 light-years
Earth Similarity Index 0.329
Travel time at Voyager 1 speed 15,241,878 years

KOI-7368 b Planet Profile

Physical Specs

Radius

2.22 R⊕

Radius (Jupiter)

0.198 R♃

Mass

5.56 M⊕

Mass (Jupiter)

0.018 M♃

Density

2.79 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.329

HZ Position Inner

Controversial No

Discovery

Year 2022

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1642of 1978

top 83.0%

This planet

2.22R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1151 b 2.22 R⊕ KMT-2018-BLG-1988L b 2.22 R⊕ Kepler-938 b 2.22 R⊕

Metric	Earth	KOI-7368 b	Jupiter
Radius (R⊕)	1.00	2.22	11.21
Mass (M⊕)	1.00	5.56	317.83
Density (g/cm³)	5.51	2.79	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	99.24	0.037

Star Catalogue Identifiers

TIC

TIC 27010191

Gaia DR2

Gaia DR2 2128840912955018368

Gaia DR3

Gaia DR3 2128840912955018368

System

KOI-7368

Percentile among Sub-Neptune cohort

Radius 2.220 R⊕ · percentile 17 / cohort 1978

Mass 5.560 M⊕ · percentile 17 / cohort 1978

Orbital period 6.84 d · percentile 21 / cohort 1946

Distance 265.00 pc · percentile 32 / cohort 1975

ESI 0.329 · percentile 35 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

6.843 days

Semi-major axis

0.0678 AU

Eccentricity

0.000

Inclination

71.62 °

Year Length

A year here lasts approximately 6.84 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0678 AU.

Transit Fingerprint

Depth

0.172 %

Duration

2.790 h

Impact parameter b

0.508

Rp / R★

0.023000

Transit midpoint (BJD)

2,454,970.0463

Photometric dip

Transit produces a flux drop of 1,723 ppm lasting ≈ 2.79 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023000

Semi-major axis / stellar radius

16.670

Impact parameter (b)

0.508

Transit mid-time (BJD)

2,454,970.0463

Angular separation (arcsec)

0.25600

Eq. Temperature

805K

(532 °C)

Insolation (S⊕)

99.24

Earth = 1.00

Earth Similarity (ESI)

0.329

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

Bouma et al. 2022

Instrument

Kepler CCD Array

Publication

2022-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2022 at Kepler (6 shown).

KOI-7913 b · Sub-Neptune Kepler-1972 b · Rocky Terrestrial KOI-984 c · Gas Giant Kepler-1972 c · Rocky Terrestrial KOI-984 b · Neptune-like KOI-4777.01 · Rocky Terrestrial

Host System: KOI-7368

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,241 K — cooler than the Sun (5,778 K)

Estimated Age

0.04 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.874 R☉

Stellar Mass

0.879 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.499 dex

Stellar density

1.870 g/cm³

Rotation period

2.61 days

Metallicity ratio

[M/H]

Distance

265.00 parsec

Light-years 864.30 ly

V-band magnitude

12.97 mag

Voyager-speed travel 15,241,878 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Parallax

3.745 mas

Total Proper Motion

3.547 mas/yr

PM Right Ascension

2.85 mas/yr

PM Declination

2.12 mas/yr

Galactic Cartesian (pc)

x = 0.271 · y = -0.611 · z = 0.744

Equatorial (J2000)

RA 293.94764° · Dec 48.06526°

Galactic ℓ, b

80.630° · 12.993°

Ecliptic λ, β

315.724° · 67.739°

HTM-20 index

-1628401337