Key parameters at a glance

A radius of 2.20 Earth radii
A mass of 5.48 Earth masses
Surface gravity around 1.13 g
An orbital period of 28.862 days
Semi-major axis 0.1779 AU
Equilibrium temperature 623 K (350 °C)
Distance from Earth 1,527.25 light-years
Earth Similarity Index 0.425
Travel time at Voyager 1 speed 26,933,080 years

Kepler-513 b Planet Profile

Physical Specs

Radius

2.20 R⊕

Radius (Jupiter)

0.196 R♃

Mass

5.48 M⊕

Mass (Jupiter)

0.017 M♃

Density

2.83 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.425

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1673of 1978

top 84.5%

This planet

2.20R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

HD 110067 b 2.20 R⊕ Kepler-169 e 2.20 R⊕ Kepler-122 d 2.20 R⊕

Metric	Earth	Kepler-513 b	Jupiter
Radius (R⊕)	1.00	2.20	11.21
Mass (M⊕)	1.00	5.48	317.83
Density (g/cm³)	5.51	2.83	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	36.53	0.037

Star Catalogue Identifiers

TIC

TIC 48503953

Gaia DR2

Gaia DR2 2132325200882204544

Gaia DR3

Gaia DR3 2132325200882204544

System

Kepler-513

Percentile among Sub-Neptune cohort

Radius 2.200 R⊕ · percentile 15 / cohort 1978

Mass 5.480 M⊕ · percentile 15 / cohort 1978

Orbital period 28.86 d · percentile 72 / cohort 1946

Distance 468.26 pc · percentile 45 / cohort 1975

ESI 0.425 · percentile 57 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

28.862 days

Semi-major axis

0.1779 AU

Eccentricity

0.000

Inclination

88.35 °

Year Length

A year here lasts approximately 28.86 Earth days (7.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1779 AU.

Transit Fingerprint

Depth

0.045 %

Duration

5.204 h

Impact parameter b

0.720

Rp / R★

0.019290

Transit midpoint (BJD)

2,455,011.4847

Photometric dip

Transit produces a flux drop of 449 ppm lasting ≈ 5.20 h.

Extended Orbital Architecture

Planet / star radius ratio

0.019290

Semi-major axis / stellar radius

43.100

Impact parameter (b)

0.720

Transit mid-time (BJD)

2,455,011.4847

Angular separation (arcsec)

0.38000

Eq. Temperature

623K

(350 °C)

Insolation (S⊕)

36.53

Earth = 1.00

Earth Similarity (ESI)

0.425

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-513

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,849 K — hotter than the Sun (5,778 K)

Estimated Age

5.50 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.060 R☉

Stellar Mass

1.020 M☉

Metallicity [Fe/H]

-0.01

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

0.720 g/cm³

Metallicity ratio

[Fe/H]

Distance

468.26 parsec

Light-years 1,527.25 ly

V-band magnitude

13.02 mag

Voyager-speed travel 26,933,080 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.107 mas

Total Proper Motion

13.943 mas/yr

PM Right Ascension

-13.29 mas/yr

PM Declination

4.21 mas/yr

Galactic Cartesian (pc)

x = 0.167 · y = -0.620 · z = 0.767

Equatorial (J2000)

RA 285.04162° · Dec 50.07539°

Galactic ℓ, b

80.178° · 19.144°

Ecliptic λ, β

302.283° · 71.832°

HTM-20 index

-497874902