Key parameters at a glance

A radius of 2.10 Earth radii
A mass of 5.06 Earth masses
Surface gravity around 1.15 g
An orbital period of 24.308 days
Semi-major axis 0.1593 AU
Equilibrium temperature 532 K (259 °C)
Distance from Earth 804.33 light-years
Earth Similarity Index 0.501
Travel time at Voyager 1 speed 14,184,417 years

Kepler-519 b Planet Profile

Physical Specs

Radius

2.10 R⊕

Radius (Jupiter)

0.187 R♃

Mass

5.06 M⊕

Mass (Jupiter)

0.016 M♃

Density

3.00 g/cm³

Surface Gravity

1.15 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.501

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

#1818of 1978

top 91.9%

This planet

2.10R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

TOI-5734 b 2.10 R⊕ Kepler-52 b 2.10 R⊕ Kepler-360 c 2.10 R⊕

Metric	Earth	Kepler-519 b	Jupiter
Radius (R⊕)	1.00	2.10	11.21
Mass (M⊕)	1.00	5.06	317.83
Density (g/cm³)	5.51	3.00	1.33
Surface Gravity (g)	1.00	1.15	2.53
Insolation (S⊕)	1.00	19.87	0.037

Star Catalogue Identifiers

TIC

TIC 171971913

Gaia DR2

Gaia DR2 2075161655782111872

Gaia DR3

Gaia DR3 2075161655782111872

System

Kepler-519

Percentile among Sub-Neptune cohort

Radius 2.100 R⊕ · percentile 7 / cohort 1978

Mass 5.060 M⊕ · percentile 9 / cohort 1978

Orbital period 24.31 d · percentile 68 / cohort 1946

Distance 246.61 pc · percentile 32 / cohort 1975

ESI 0.501 · percentile 70 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

24.308 days

Semi-major axis

0.1593 AU

Eccentricity

0.000

Inclination

89.63 °

Year Length

A year here lasts approximately 24.31 Earth days (6.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1593 AU.

Transit Fingerprint

Depth

0.070 %

Duration

2.598 h

Impact parameter b

0.088

Rp / R★

0.023699

Transit midpoint (BJD)

2,455,011.3644

Photometric dip

Transit produces a flux drop of 696 ppm lasting ≈ 2.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023699

Semi-major axis / stellar radius

72.900

Impact parameter (b)

0.088

Transit mid-time (BJD)

2,455,011.3644

Angular separation (arcsec)

0.64600

Eq. Temperature

532K

(259 °C)

Insolation (S⊕)

19.87

Earth = 1.00

Earth Similarity (ESI)

0.501

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-519

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,260 K — cooler than the Sun (5,778 K)

Estimated Age

1.91 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.800 R☉

Stellar Mass

0.890 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.580 dex

Stellar density

1.580 g/cm³

Systemic radial velocity

-20.72 km/s

Metallicity ratio

[Fe/H]

Distance

246.61 parsec

Light-years 804.33 ly

V-band magnitude

12.77 mag

Voyager-speed travel 14,184,417 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

4.026 mas

Total Proper Motion

25.553 mas/yr

PM Right Ascension

17.32 mas/yr

PM Declination

18.79 mas/yr

Galactic Cartesian (pc)

x = 0.367 · y = -0.654 · z = 0.661

Equatorial (J2000)

RA 299.31967° · Dec 41.38474°

Galactic ℓ, b

76.537° · 6.445°

Ecliptic λ, β

317.449° · 60.086°

HTM-20 index

-242435277