Key parameters at a glance

A radius of 1.01 Earth radii
A mass of 1.01 Earth masses
Surface gravity around 0.99 g
An orbital period of 2.878 days
Distance from Earth 526.30 light-years
Earth Similarity Index 0.995
Travel time at Voyager 1 speed 9,281,329 years
Almost certainly tidally locked to its host star given the close orbit

EPIC 206032309 b Planet Profile

Physical Specs

Radius

1.01 R⊕

Radius (Jupiter)

0.090 R♃

Mass

1.01 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.39 g/cm³

Surface Gravity

0.99 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.995

HZ Position Unknown

Controversial No

Discovery

Year 2019

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#326of 570

top 57.0%

This planet

1.01R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1278 b 1.01 R⊕ Kepler-282 b 1.01 R⊕ Kepler-398 c 1.01 R⊕

Metric	Earth	EPIC 206032309 b	Jupiter
Radius (R⊕)	1.00	1.01	11.21
Mass (M⊕)	1.00	1.01	317.83
Density (g/cm³)	5.51	5.39	1.33
Surface Gravity (g)	1.00	0.99	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 145752628

Gaia DR2

Gaia DR2 2597400855444243840

Gaia DR3

Gaia DR3 2597400855444243840

System

EPIC 206032309

Percentile among Rocky Terrestrial cohort

Radius 1.010 R⊕ · percentile 42 / cohort 570

Mass 1.010 M⊕ · percentile 37 / cohort 570

Orbital period 2.88 d · percentile 33 / cohort 567

Distance 161.37 pc · percentile 28 / cohort 566

ESI 0.995 · percentile 100 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

2.878 days

Semi-major axis

— AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 2.88 Earth days (0.8% of a terrestrial year).

Transit Fingerprint

Impact parameter b

0.260

Rp / R★

0.040500

Transit midpoint (BJD)

2,456,899.1320

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.995

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Heller et al. 2019

Instrument

Kepler CCD Array

Publication

2019-07

Observation locale

Space

Discovery cohort

Planets confirmed in 2019 at K2 (12 shown).

EPIC 201833600 c · Rocky Terrestrial EPIC 206215704 b · Rocky Terrestrial EPIC 201754305 d · Rocky Terrestrial EPIC 201841433 b · Rocky Terrestrial EPIC 206317286 b · Rocky Terrestrial EPIC 201615463 c · Rocky Terrestrial EPIC 212499991 b · Super-Earth EPIC 220554210 c · Super-Earth EPIC 201497682 b · Rocky Terrestrial K2-133 e · Super-Earth EPIC 206024342 b · Super-Earth EPIC 206042996 b · Super-Earth

Host System: EPIC 206032309

Spectral Class

M-type red dwarf

Effective Temperature

3,489 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.373 R☉

Stellar Mass

0.221 M☉

Metallicity [Fe/H]

—

Distance

161.37 parsec

Light-years 526.30 ly

V-band magnitude

17.89 mag

Voyager-speed travel 9,281,329 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

6.169 mas

Total Proper Motion

82.647 mas/yr

PM Right Ascension

-66.10 mas/yr

PM Declination

-49.61 mas/yr

Galactic Cartesian (pc)

x = 0.919 · y = -0.312 · z = -0.240

Equatorial (J2000)

RA 341.24046° · Dec -13.90112°

Galactic ℓ, b

50.702° · -57.696°

Ecliptic λ, β

337.429° · -5.523°

HTM-20 index

-1369910758