Key parameters at a glance

A radius of 2.95 Earth radii
A mass of 8.98 Earth masses
Surface gravity around 1.04 g
An orbital period of 9.844 days
Distance from Earth 1,512.97 light-years
Earth Similarity Index 0.646
Travel time at Voyager 1 speed 26,681,268 years

K2-372 b Planet Profile

Physical Specs

Radius

2.95 R⊕

Radius (Jupiter)

0.263 R♃

Mass

8.98 M⊕

Mass (Jupiter)

0.028 M♃

Density

1.93 g/cm³

Surface Gravity

1.04 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.646

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#567of 1978

top 28.6%

This planet

2.95R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1889 b 2.94 R⊕ Kepler-1757 b 2.95 R⊕ Kepler-1914 b 2.94 R⊕

Metric	Earth	K2-372 b	Jupiter
Radius (R⊕)	1.00	2.95	11.21
Mass (M⊕)	1.00	8.98	317.83
Density (g/cm³)	5.51	1.93	1.33
Surface Gravity (g)	1.00	1.04	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 333800257

Gaia DR2

Gaia DR2 602348482997667840

Gaia DR3

Gaia DR3 602348482997667840

System

K2-372

Percentile among Sub-Neptune cohort

Radius 2.945 R⊕ · percentile 71 / cohort 1978

Mass 8.980 M⊕ · percentile 65 / cohort 1978

Orbital period 9.84 d · percentile 33 / cohort 1946

Distance 463.88 pc · percentile 45 / cohort 1975

ESI 0.646 · percentile 87 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

9.844 days

Semi-major axis

— AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 9.84 Earth days (2.7% of a terrestrial year).

Transit Fingerprint

Depth

0.109 %

Duration

3.629 h

Impact parameter b

0.337

Rp / R★

0.029200

Transit midpoint (BJD)

2,457,146.3287

Photometric dip

Transit produces a flux drop of 1,093 ppm lasting ≈ 3.63 h.

Extended Orbital Architecture

Planet / star radius ratio

0.029200

Semi-major axis / stellar radius

20.010

Impact parameter (b)

0.337

Transit mid-time (BJD)

2,457,146.3287

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.646

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Christiansen et al. 2022

Instrument

Kepler CCD Array

Publication

2022-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2022 at K2 (12 shown).

K2-411 b · Rocky Terrestrial K2-381 b · Rocky Terrestrial K2-384 b · Rocky Terrestrial K2-400 b · Rocky Terrestrial K2-384 c · Rocky Terrestrial K2-369 b · Super-Earth K2-407 b · Super-Earth K2-414 b · Rocky Terrestrial K2-368 b · Super-Earth K2-413 c · Rocky Terrestrial K2-384 e · Super-Earth K2-407 c · Super-Earth

Host System: K2-372

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,479 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.922 R☉

Stellar Mass

0.847 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

4.437 dex

Stellar density

1.542 g/cm³

Metallicity ratio

[Fe/H]

Distance

463.88 parsec

Light-years 1,512.97 ly

V-band magnitude

13.59 mag

Voyager-speed travel 26,681,268 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

2.127 mas

Total Proper Motion

39.863 mas/yr

PM Right Ascension

5.74 mas/yr

PM Declination

-39.45 mas/yr

Galactic Cartesian (pc)

x = -0.637 · y = 0.738 · z = 0.225

Equatorial (J2000)

RA 130.79887° · Dec 13.00942°

Galactic ℓ, b

213.452° · 30.593°

Ecliptic λ, β

129.717° · -4.983°

HTM-20 index

-504096100