Key parameters at a glance

A radius of 1.62 Earth radii
A mass of 3.26 Earth masses
Surface gravity around 1.24 g
An orbital period of 2.462 days
Semi-major axis 0.0360 AU
Equilibrium temperature 1,326 K (1053 °C)
Distance from Earth 2,070.89 light-years
Earth Similarity Index 0.213
Travel time at Voyager 1 speed 36,520,172 years

1 sibling around Kepler-213

Kepler-213 b 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
Kepler-213 b this	Super-Earth	1.62	3.26	2.462	1,326	2014
Kepler-213 c	Sub-Neptune	2.34	6.08	4.823	1,060	2014

Kepler-213 b Planet Profile

Physical Specs

Radius

1.62 R⊕

Radius (Jupiter)

0.145 R♃

Mass

3.26 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.21 g/cm³

Surface Gravity

1.24 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.213

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#532of 1176

top 45.2%

This planet

1.62R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

TOI-1416 b 1.62 R⊕ K2-58 c 1.62 R⊕ Kepler-1400 b 1.62 R⊕

Metric	Earth	Kepler-213 b	Jupiter
Radius (R⊕)	1.00	1.62	11.21
Mass (M⊕)	1.00	3.26	317.83
Density (g/cm³)	5.51	4.21	1.33
Surface Gravity (g)	1.00	1.24	2.53
Insolation (S⊕)	1.00	833.47	0.037

Star Catalogue Identifiers

TIC

TIC 159521326

Gaia DR2

Gaia DR2 2127001056345369984

Gaia DR3

Gaia DR3 2127001056345369984

System

Kepler-213

Percentile among Super-Earth cohort

Radius 1.620 R⊕ · percentile 54 / cohort 1176

Mass 3.260 M⊕ · percentile 49 / cohort 1176

Orbital period 2.46 d · percentile 16 / cohort 1164

Distance 634.94 pc · percentile 58 / cohort 1171

ESI 0.213 · percentile 16 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

2.462 days

Semi-major axis

0.0360 AU

Eccentricity

0.000

Inclination

89.72 °

Year Length

A year here lasts approximately 2.46 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0360 AU.

Transit Fingerprint

Depth

0.018 %

Duration

1.768 h

Impact parameter b

0.220

Rp / R★

0.012128

Transit midpoint (BJD)

2,455,004.8399

Photometric dip

Transit produces a flux drop of 180 ppm lasting ≈ 1.77 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012128

Semi-major axis / stellar radius

10.514

Impact parameter (b)

0.220

Transit mid-time (BJD)

2,455,004.8399

Angular separation (arcsec)

0.05670

Eq. Temperature

1,326K

(1053 °C)

Insolation (S⊕)

833.47

Earth = 1.00

Earth Similarity (ESI)

0.213

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-213

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,696 K — cooler than the Sun (5,778 K)

Estimated Age

1.62 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.195 R☉

Stellar Mass

1.070 M☉

Metallicity [Fe/H]

0.15

Extended Stellar Properties

Surface gravity (log g)

4.310 dex

Stellar density

0.780 g/cm³

Metallicity ratio

[Fe/H]

Distance

634.94 parsec

Light-years 2,070.89 ly

V-band magnitude

13.71 mag

Voyager-speed travel 36,520,172 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.546 mas

Total Proper Motion

23.094 mas/yr

PM Right Ascension

0.59 mas/yr

PM Declination

23.09 mas/yr

Galactic Cartesian (pc)

x = 0.253 · y = -0.665 · z = 0.703

Equatorial (J2000)

RA 290.82419° · Dec 44.64728°

Galactic ℓ, b

76.507° · 13.456°

Ecliptic λ, β

307.416° · 65.404°

HTM-20 index

639324357