Key parameters at a glance

A radius of 2.12 Earth radii
A mass of 5.13 Earth masses
Surface gravity around 1.15 g
An orbital period of 5.938 days
Semi-major axis 0.0586 AU
Distance from Earth 2,133.34 light-years
Earth Similarity Index 0.765
Travel time at Voyager 1 speed 37,621,404 years

K2-412 b Planet Profile

Physical Specs

Radius

2.12 R⊕

Radius (Jupiter)

0.189 R♃

Mass

5.13 M⊕

Mass (Jupiter)

0.016 M♃

Density

2.98 g/cm³

Surface Gravity

1.15 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.765

HZ Position Inner

Controversial No

Discovery

Year 2022

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1803of 1978

top 91.1%

This planet

2.12R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1828 b 2.12 R⊕ K2-177 b 2.12 R⊕ Kepler-1880 b 2.12 R⊕

Metric	Earth	K2-412 b	Jupiter
Radius (R⊕)	1.00	2.12	11.21
Mass (M⊕)	1.00	5.13	317.83
Density (g/cm³)	5.51	2.98	1.33
Surface Gravity (g)	1.00	1.15	2.53
Insolation (S⊕)	1.00	243.52	0.037

Star Catalogue Identifiers

TIC

TIC 69274518

Gaia DR2

Gaia DR2 3409152693750235008

Gaia DR3

Gaia DR3 3409152693750235008

System

K2-412

Percentile among Sub-Neptune cohort

Radius 2.116 R⊕ · percentile 9 / cohort 1978

Mass 5.130 M⊕ · percentile 10 / cohort 1978

Orbital period 5.94 d · percentile 17 / cohort 1946

Distance 654.09 pc · percentile 57 / cohort 1975

ESI 0.765 · percentile 98 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

5.938 days

Semi-major axis

0.0586 AU

Eccentricity

—

Inclination

90.00 °

Year Length

A year here lasts approximately 5.94 Earth days (1.6% of a terrestrial year) at a mean orbital distance of 0.0586 AU.

Eq. Temperature

—

Insolation (S⊕)

243.52

Earth = 1.00

Earth Similarity (ESI)

0.765

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Del Ser et al. 2022

Instrument

Kepler CCD Array

Publication

2022-10

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: K2-412

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,590 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.977 R☉

Stellar Mass

0.893 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.412 dex

Stellar density

0.819 g/cm³

Metallicity ratio

[Fe/H]

Distance

654.09 parsec

Light-years 2,133.34 ly

V-band magnitude

15.75 mag

Voyager-speed travel 37,621,404 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

1.501 mas

Total Proper Motion

3.490 mas/yr

PM Right Ascension

-2.25 mas/yr

PM Declination

2.67 mas/yr

Galactic Cartesian (pc)

x = 0.221 · y = 0.903 · z = 0.368

Equatorial (J2000)

RA 76.26213° · Dec 21.58016°

Galactic ℓ, b

181.051° · -11.702°

Ecliptic λ, β

77.235° · -1.253°

HTM-20 index

738429729