Confirmed Exoplanet Discovered 2022

K2-414 c

A super-earth orbiting the k-type orange K2-414, located approximately 848.1 light-years from Earth.

Key parameters at a glance

  • A radius of 1.93 Earth radii
  • A mass of 4.38 Earth masses
  • Surface gravity around 1.18 g
  • An orbital period of 6.669 days
  • Semi-major axis 0.0552 AU
  • Distance from Earth 848.12 light-years
  • Earth Similarity Index 0.799
  • Travel time at Voyager 1 speed 14,956,649 years
  • Almost certainly tidally locked to its host star given the close orbit

1 sibling around K2-414

K2-414 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
K2-414 b Rocky Terrestrial 1.22 1.98 4.370 2022
K2-414 c this Super-Earth 1.93 4.38 6.669 2022

K2-414 c Planet Profile

Physical Specs

Radius
1.93 R⊕
Radius (Jupiter)
0.172 R♃
Mass
4.38 M⊕
Mass (Jupiter)
0.014 M♃
Density
3.35 g/cm³
Surface Gravity
1.18 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.799
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

#100of 1176

top 8.4%

This planet

1.93R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth K2-414 c Jupiter
Radius (R⊕)1.001.9311.21
Mass (M⊕)1.004.38317.83
Density (g/cm³)5.513.351.33
Surface Gravity (g)1.001.182.53
Insolation (S⊕)1.0056.130.037

Star Catalogue Identifiers

TIC

TIC 301288279

Gaia DR2

Gaia DR2 2634046753364013440

Gaia DR3

Gaia DR3 2634046753364013440

System

K2-414

Percentile among Super-Earth cohort

Radius 1.929 R⊕ · percentile 91 / cohort 1176
Mass 4.380 M⊕ · percentile 84 / cohort 1176
Orbital period 6.67 d · percentile 50 / cohort 1164
Distance 260.04 pc · percentile 29 / cohort 1171
ESI 0.799 · percentile 89 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
6.669 days
Semi-major axis
0.0552 AU
Eccentricity
Inclination
90.00 °

Year Length

A year here lasts approximately 6.67 Earth days (1.8% of a terrestrial year) at a mean orbital distance of 0.0552 AU.

Eq. Temperature

 

Insolation (S⊕)

56.13

Earth = 1.00

Earth Similarity (ESI)

0.799

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water). Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Del Ser et al. 2022

Instrument

Kepler CCD Array

Publication

2022-10

Observation locale

Space

Host System: K2-414

Spectral Class

K-type orange

Effective Temperature

4,343 K — cooler than the Sun (5,778 K)

Estimated Age

Stellar Radius

0.732 R☉

Stellar Mass

0.814 M☉

Metallicity [Fe/H]

-0.10

Extended Stellar Properties

Surface gravity (log g)

4.621 dex

Stellar density

2.291 g/cm³

Metallicity ratio

[Fe/H]

Distance
260.04 parsec
Light-years 848.12 ly
V-band magnitude
14.29 mag
Voyager-speed travel 14,956,649 yr

Multi-band Host Photometry — 12 bands

8.715.615.56B14.29V13.94Gaia13.98Kepler13.21TESS12.18J11.56H11.44K11.39W111.46W211.41W38.73W4

Astrometric Data

Parallax

3.817 mas

Total Proper Motion

18.392 mas/yr

PM Right Ascension

-5.40 mas/yr

PM Declination

-17.58 mas/yr

Galactic Cartesian (pc)

x = 0.986 · y = -0.145 · z = -0.080

Equatorial (J2000)

RA 351.63619° · Dec -4.60666°

Galactic ℓ, b

77.239° · -59.720°

Ecliptic λ, β

350.499° · -0.918°

HTM-20 index

-1463750136

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