Key parameters at a glance

A radius of 1.60 Earth radii
A mass of 3.19 Earth masses
Surface gravity around 1.25 g
An orbital period of 34.885 days
Distance from Earth 923.97 light-years
Earth Similarity Index 0.868
Travel time at Voyager 1 speed 16,294,163 years
Almost certainly tidally locked to its host star given the close orbit

EPIC 212499991 b Planet Profile

Physical Specs

Radius

1.60 R⊕

Radius (Jupiter)

0.143 R♃

Mass

3.19 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.28 g/cm³

Surface Gravity

1.25 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.868

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

#570of 1176

top 48.4%

This planet

1.60R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-49 d 1.60 R⊕ Kepler-394 b 1.60 R⊕ Kepler-114 c 1.60 R⊕

Metric	Earth	EPIC 212499991 b	Jupiter
Radius (R⊕)	1.00	1.60	11.21
Mass (M⊕)	1.00	3.19	317.83
Density (g/cm³)	5.51	4.28	1.33
Surface Gravity (g)	1.00	1.25	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 297146957

Gaia DR2

Gaia DR2 3610090784483619456

Gaia DR3

Gaia DR3 3610090784483619456

System

EPIC 212499991

Percentile among Super-Earth cohort

Radius 1.600 R⊕ · percentile 50 / cohort 1176

Mass 3.190 M⊕ · percentile 46 / cohort 1176

Orbital period 34.89 d · percentile 93 / cohort 1164

Distance 283.29 pc · percentile 30 / cohort 1171

ESI 0.868 · percentile 95 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

34.885 days

Semi-major axis

— AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 34.89 Earth days (9.6% of a terrestrial year).

Transit Fingerprint

Impact parameter b

0.280

Rp / R★

0.019300

Transit midpoint (BJD)

2,457,280.6254

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.868

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 206032309 b · Rocky Terrestrial 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 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 212499991

Spectral Class

K-type orange

Effective Temperature

4,983 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.758 R☉

Stellar Mass

0.912 M☉

Metallicity [Fe/H]

—

Distance

283.29 parsec

Light-years 923.97 ly

V-band magnitude

13.67 mag

Voyager-speed travel 16,294,163 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

3.501 mas

Total Proper Motion

8.745 mas/yr

PM Right Ascension

-4.36 mas/yr

PM Declination

-7.58 mas/yr

Galactic Cartesian (pc)

x = -0.901 · y = -0.373 · z = -0.220

Equatorial (J2000)

RA 202.48875° · Dec -12.73477°

Galactic ℓ, b

317.349° · 49.056°

Ecliptic λ, β

205.503° · -3.086°

HTM-20 index

964105715

Similar Worlds

Kepler-994 b

Super-Earth · K-type orange

Radius 1.60 R⊕ · 613.7 ly

Kepler-842 b

Super-Earth · K-type orange

Radius 1.60 R⊕ · 1,737.5 ly

Kepler-80 e

Super-Earth · K-type orange

Radius 1.60 R⊕ · 1,205.0 ly

Kepler-1702 b

Super-Earth · K-type orange

Radius 1.60 R⊕ · 2,795.6 ly

HD 219134 b

Super-Earth · K-type orange

Radius 1.60 R⊕ · 21.3 ly

Kepler-1804 b

Super-Earth · K-type orange

Radius 1.60 R⊕ · 1,417.0 ly

Explore Related Categories

Super-Earth Planets Transit Discoveries K2 Mission K-type orange Hosts