Key parameters at a glance

A radius of 1.05 Earth radii
A mass of 1.15 Earth masses
Surface gravity around 1.05 g
An orbital period of 6.799 days
Semi-major axis 0.0349 AU
Distance from Earth 437.05 light-years
Earth Similarity Index 0.990
Travel time at Voyager 1 speed 7,707,359 years
Almost certainly tidally locked to its host star given the close orbit

EPIC 201170410.02 Planet Profile

Physical Specs

Radius

1.05 R⊕

Radius (Jupiter)

0.093 R♃

Mass

1.15 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.51 g/cm³

Surface Gravity

1.05 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.990

HZ Position Unknown

Controversial No

Discovery

Year 2020

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#285of 570

top 49.8%

This planet

1.05R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

TRAPPIST-1 f 1.05 R⊕ K2-19 d 1.04 R⊕ Kepler-163 b 1.05 R⊕

Metric	Earth	EPIC 201170410.02	Jupiter
Radius (R⊕)	1.00	1.05	11.21
Mass (M⊕)	1.00	1.15	317.83
Density (g/cm³)	5.51	5.51	1.33
Surface Gravity (g)	1.00	1.05	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 38116202

Gaia DR2

Gaia DR2 3786541956697428224

Gaia DR3

Gaia DR3 3786541956697681664

System

EPIC 201170410

Percentile among Rocky Terrestrial cohort

Radius 1.047 R⊕ · percentile 50 / cohort 570

Mass 1.150 M⊕ · percentile 45 / cohort 570

Orbital period 6.80 d · percentile 66 / cohort 567

Distance 134.00 pc · percentile 26 / cohort 566

ESI 0.990 · percentile 98 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

6.799 days

Semi-major axis

0.0349 AU

Eccentricity

0.000

Inclination

89.00 °

Year Length

A year here lasts approximately 6.80 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0349 AU.

Transit Fingerprint

Impact parameter b

0.460

Rp / R★

0.034000

Transit midpoint (BJD)

2,456,813.1485

Extended Orbital Architecture

Planet / star radius ratio

0.034000

Impact parameter (b)

0.460

Transit mid-time (BJD)

2,456,813.1485

Angular separation (arcsec)

0.26000

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.990

0 = alien, 1 = Earth-identical

Insufficient insolation data. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Del Ser & Fors 2020

Instrument

Kepler CCD Array

Publication

2020-08

Observation locale

Space

Discovery cohort

Planets confirmed in 2020 at K2 (12 shown).

EPIC 201757695.02 · Rocky Terrestrial K2-323 b · Sub-Neptune K2-315 b · Rocky Terrestrial K2-316 c · Super-Earth K2-318 b · Super-Earth K2-325 b · Sub-Neptune K2-317 b · Sub-Neptune K2-322 b · Super-Earth K2-319 b · Sub-Neptune K2-316 b · Super-Earth K2-324 b · Sub-Neptune K2-320 b · Sub-Neptune

Host System: EPIC 201170410

Spectral Class

M-type red dwarf

Effective Temperature

3,648 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.282 R☉

Stellar Mass

0.287 M☉

Metallicity [Fe/H]

-0.05

Distance

134.00 parsec

Light-years 437.05 ly

V-band magnitude

17.70 mag

Voyager-speed travel 7,707,359 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Total Proper Motion

21.863 mas/yr

PM Right Ascension

8.58 mas/yr

PM Declination

-20.11 mas/yr

Galactic Cartesian (pc)

x = -0.982 · y = 0.171 · z = -0.084

Equatorial (J2000)

RA 170.14086° · Dec -4.80700°

Galactic ℓ, b

264.995° · 51.246°

Ecliptic λ, β

172.843° · -8.323°

HTM-20 index

1437462471