Confirmed Exoplanet Discovered 2016

Kepler-719 b

A neptune-like orbiting the g-type yellow (sun-like) Kepler-719, located approximately 8,145.8 light-years from Earth.

Key parameters at a glance

  • A radius of 8.52 Earth radii
  • A mass of 54.50 Earth masses
  • Surface gravity around 0.75 g
  • An orbital period of 5.007 days
  • Semi-major axis 0.0556 AU
  • Equilibrium temperature 998 K (725 °C)
  • Distance from Earth 8,145.78 light-years
  • Earth Similarity Index 0.145
  • Travel time at Voyager 1 speed 143,650,800 years

Kepler-719 b Planet Profile

Physical Specs

Radius
8.52 R⊕
Radius (Jupiter)
0.760 R♃
Mass
54.50 M⊕
Mass (Jupiter)
0.172 M♃
Density
0.48 g/cm³
Surface Gravity
0.75 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.145
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

#121of 574

top 20.9%

This planet

8.52R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

Metric Earth Kepler-719 b Jupiter
Radius (R⊕)1.008.5211.21
Mass (M⊕)1.0054.50317.83
Density (g/cm³)5.510.481.33
Surface Gravity (g)1.000.752.53
Insolation (S⊕)1.00234.280.037

Star Catalogue Identifiers

TIC

TIC 271767300

Gaia DR2

Gaia DR2 2079608703576897024

Gaia DR3

Gaia DR3 2079608703576897024

System

Kepler-719

Percentile among Neptune-like cohort

Radius 8.520 R⊕ · percentile 79 / cohort 574
Mass 54.500 M⊕ · percentile 75 / cohort 574
Orbital period 5.01 d · percentile 20 / cohort 524
Distance 2,497.51 pc · percentile 91 / cohort 572
ESI 0.145 · percentile 12 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period
5.007 days
Semi-major axis
0.0556 AU
Eccentricity
0.000
Inclination
87.87 °

Year Length

A year here lasts approximately 5.01 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0556 AU.

Transit Fingerprint

Depth

0.763 %

Duration

4.222 h

Impact parameter b

0.341

Rp / R★

0.080107

Transit midpoint (BJD)

2,455,006.4339

Photometric dip

Transit produces a flux drop of 7,630 ppm lasting ≈ 4.22 h.

Extended Orbital Architecture

Planet / star radius ratio

0.080107

Semi-major axis / stellar radius

9.680

Impact parameter (b)

0.341

Transit mid-time (BJD)

2,455,006.4339

Angular separation (arcsec)

0.02230

Eq. Temperature

998K

(725 °C)

Insolation (S⊕)

234.28

Earth = 1.00

Earth Similarity (ESI)

0.145

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

Host System: Kepler-719

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,777 K — cooler than the Sun (5,778 K)

Estimated Age

3.98 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.980 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.684 g/cm³

Metallicity ratio

[Fe/H]

Distance
2,497.51 parsec
Light-years 8,145.78 ly
V-band magnitude
16.13 mag
Voyager-speed travel 143,650,800 yr

Multi-band Host Photometry — 16 bands

9.016.716.72B16.13V15.90Gaia15.81Kepler15.38TESS16.34Sloan g15.78Sloan r15.59Sloan i15.52Sloan z14.57J14.21H14.13K14.05W114.08W212.61W38.99W4

Astrometric Data

Parallax

0.373 mas

Total Proper Motion

9.352 mas/yr

PM Right Ascension

-4.07 mas/yr

PM Declination

-8.42 mas/yr

Galactic Cartesian (pc)

x = 0.311 · y = -0.650 · z = 0.693

Equatorial (J2000)

RA 295.53606° · Dec 43.88441°

Galactic ℓ, b

77.351° · 10.098°

Ecliptic λ, β

314.068° · 63.469°

HTM-20 index

-1237714888

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