Key parameters at a glance

A radius of 2.24 Earth radii
A mass of 5.66 Earth masses
Surface gravity around 1.13 g
An orbital period of 14.454 days
Distance from Earth 2,270.37 light-years
Earth Similarity Index 0.744
Travel time at Voyager 1 speed 40,038,007 years

K2-375 b Planet Profile

Physical Specs

Radius

2.24 R⊕

Radius (Jupiter)

0.200 R♃

Mass

5.66 M⊕

Mass (Jupiter)

0.018 M♃

Density

2.76 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.744

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

#1606of 1978

top 81.1%

This planet

2.24R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-69 b 2.24 R⊕ Kepler-284 b 2.24 R⊕ Kepler-196 c 2.24 R⊕

Metric	Earth	K2-375 b	Jupiter
Radius (R⊕)	1.00	2.24	11.21
Mass (M⊕)	1.00	5.66	317.83
Density (g/cm³)	5.51	2.76	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 175290532

Gaia DR2

Gaia DR2 661453074146753152

Gaia DR3

Gaia DR3 661453074146753152

System

K2-375

Percentile among Sub-Neptune cohort

Radius 2.243 R⊕ · percentile 19 / cohort 1978

Mass 5.660 M⊕ · percentile 19 / cohort 1978

Orbital period 14.45 d · percentile 49 / cohort 1946

Distance 696.10 pc · percentile 59 / cohort 1975

ESI 0.744 · percentile 96 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

14.454 days

Semi-major axis

— AU

Eccentricity

—

Inclination

87.97 °

Year Length

A year here lasts approximately 14.45 Earth days (4.0% of a terrestrial year).

Transit Fingerprint

Depth

0.030 %

Duration

6.792 h

Impact parameter b

0.284

Rp / R★

0.013300

Transit midpoint (BJD)

2,457,147.3436

Photometric dip

Transit produces a flux drop of 298 ppm lasting ≈ 6.79 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013300

Semi-major axis / stellar radius

16.900

Impact parameter (b)

0.284

Transit mid-time (BJD)

2,457,147.3436

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.744

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: K2-375

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,822 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.543 R☉

Stellar Mass

1.119 M☉

Metallicity [Fe/H]

-0.09

Extended Stellar Properties

Surface gravity (log g)

4.107 dex

Stellar density

0.398 g/cm³

Metallicity ratio

[Fe/H]

Distance

696.10 parsec

Light-years 2,270.37 ly

V-band magnitude

13.16 mag

Voyager-speed travel 40,038,007 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

1.408 mas

Total Proper Motion

5.756 mas/yr

PM Right Ascension

-5.51 mas/yr

PM Declination

-1.68 mas/yr

Galactic Cartesian (pc)

x = -0.609 · y = 0.713 · z = 0.348

Equatorial (J2000)

RA 130.50131° · Dec 20.35930°

Galactic ℓ, b

205.299° · 33.076°

Ecliptic λ, β

127.534° · 2.042°

HTM-20 index

-2062949026