Key parameters at a glance

A radius of 1.50 Earth radii
A mass of 2.86 Earth masses
Surface gravity around 1.27 g
An orbital period of 0.721 days
Distance from Earth 2,303.94 light-years
Earth Similarity Index 0.892
Travel time at Voyager 1 speed 40,629,920 years

EPIC 201427007 b Planet Profile

Physical Specs

Radius

1.50 R⊕

Radius (Jupiter)

0.134 R♃

Mass

2.86 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.66 g/cm³

Surface Gravity

1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.892

HZ Position Unknown

Controversial No

Discovery

Year 2021

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#748of 1176

top 63.5%

This planet

1.50R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-180 b 1.50 R⊕ Kepler-273 b 1.50 R⊕ Kepler-207 c 1.50 R⊕

Metric	Earth	EPIC 201427007 b	Jupiter
Radius (R⊕)	1.00	1.50	11.21
Mass (M⊕)	1.00	2.86	317.83
Density (g/cm³)	5.51	4.66	1.33
Surface Gravity (g)	1.00	1.27	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 66664249

Gaia DR2

Gaia DR2 3698079992771142784

Gaia DR3

Gaia DR3 3698079992771142784

System

EPIC 201427007

Percentile among Super-Earth cohort

Radius 1.500 R⊕ · percentile 35 / cohort 1176

Mass 2.860 M⊕ · percentile 33 / cohort 1176

Orbital period 0.72 d · percentile 3 / cohort 1164

Distance 706.39 pc · percentile 61 / cohort 1171

ESI 0.892 · percentile 96 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

0.721 days

Semi-major axis

— AU

Eccentricity

—

Inclination

88.50 °

Year Length

A year here lasts roughly 17.3 hours long.

Transit Fingerprint

Rp / R★

0.014200

Transit midpoint (BJD)

2,457,625.7943

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.892

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Adams et al. 2021

Instrument

Kepler CCD Array

Publication

2021-08

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at K2 (12 shown).

EPIC 220492298 b · Rocky Terrestrial EPIC 206042996 c · Rocky Terrestrial EPIC 212624936 b · Rocky Terrestrial EPIC 206024342 c · Super-Earth K2-332 b · Sub-Neptune EPIC 212624936 c · Sub-Neptune EPIC 206024342 d · Sub-Neptune K2-345 b · Sub-Neptune K2-349 b · Super-Earth K2-343 c · Sub-Neptune K2-346 b · Sub-Neptune K2-336 b · Rocky Terrestrial

Host System: EPIC 201427007

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,633 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.940 R☉

Stellar Mass

0.930 M☉

Metallicity [Fe/H]

-0.05

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

1.021 g/cm³

Metallicity ratio

[Fe/H]

Distance

706.39 parsec

Light-years 2,303.94 ly

V-band magnitude

14.32 mag

Voyager-speed travel 40,629,920 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

1.387 mas

Total Proper Motion

17.783 mas/yr

PM Right Ascension

-17.35 mas/yr

PM Declination

3.89 mas/yr

Galactic Cartesian (pc)

x = -0.997 · y = -0.080 · z = -0.010

Equatorial (J2000)

RA 184.60213° · Dec -0.55129°

Galactic ℓ, b

285.586° · 61.203°

Ecliptic λ, β

184.439° · 1.323°

HTM-20 index

-1884344646