Confirmed Exoplanet Discovered 2016

Kepler-536 b

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-536, located approximately 1,507.9 light-years from Earth.

Key parameters at a glance

  • A radius of 3.10 Earth radii
  • A mass of 9.80 Earth masses
  • Surface gravity around 1.02 g
  • An orbital period of 1.827 days
  • Semi-major axis 0.0284 AU
  • Equilibrium temperature 1,877 K (1604 °C)
  • Distance from Earth 1,507.89 light-years
  • Earth Similarity Index 0.111
  • Travel time at Voyager 1 speed 26,591,655 years

Kepler-536 b Planet Profile

Physical Specs

Radius
3.10 R⊕
Radius (Jupiter)
0.277 R♃
Mass
9.80 M⊕
Mass (Jupiter)
0.031 M♃
Density
1.81 g/cm³
Surface Gravity
1.02 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.111
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

#433of 1978

top 21.8%

This planet

3.10R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-536 b Jupiter
Radius (R⊕)1.003.1011.21
Mass (M⊕)1.009.80317.83
Density (g/cm³)5.511.811.33
Surface Gravity (g)1.001.022.53
Insolation (S⊕)1.00892.810.037

Star Catalogue Identifiers

TIC

TIC 28234096

Gaia DR2

Gaia DR2 2087191485516004224

Gaia DR3

Gaia DR3 2087191485516004224

System

Kepler-536

Percentile among Sub-Neptune cohort

Radius 3.100 R⊕ · percentile 78 / cohort 1978
Mass 9.800 M⊕ · percentile 71 / cohort 1978
Orbital period 1.83 d · percentile 1 / cohort 1946
Distance 462.32 pc · percentile 45 / cohort 1975
ESI 0.111 · percentile 0 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
1.827 days
Semi-major axis
0.0284 AU
Eccentricity
0.000
Inclination
89.74 °

Year Length

A year here lasts approximately 1.83 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0284 AU.

Transit Fingerprint

Depth

0.116 %

Duration

1.957 h

Impact parameter b

0.630

Rp / R★

0.031991

Transit midpoint (BJD)

2,455,003.5258

Photometric dip

Transit produces a flux drop of 1,165 ppm lasting ≈ 1.96 h.

Extended Orbital Architecture

Planet / star radius ratio

0.031991

Semi-major axis / stellar radius

7.346

Impact parameter (b)

0.630

Transit mid-time (BJD)

2,455,003.5258

Angular separation (arcsec)

0.06130

Eq. Temperature

1,877K

(1604 °C)

Insolation (S⊕)

892.81

Earth = 1.00

Earth Similarity (ESI)

0.111

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-536

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,524 K — cooler than the Sun (5,778 K)

Estimated Age

4.79 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.890 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

4.510 dex

Stellar density

2.274 g/cm³

Metallicity ratio

[Fe/H]

Distance
462.32 parsec
Light-years 1,507.89 ly
V-band magnitude
14.03 mag
Voyager-speed travel 26,591,655 yr

Multi-band Host Photometry — 16 bands

9.414.814.83B14.03V13.78Gaia13.81Kepler13.23TESS14.45Sloan g13.77Sloan r13.53Sloan i13.39Sloan z12.38J11.99H11.89K11.80W111.85W211.80W39.41W4

Astrometric Data

Parallax

2.138 mas

Total Proper Motion

17.589 mas/yr

PM Right Ascension

-6.71 mas/yr

PM Declination

-16.26 mas/yr

Galactic Cartesian (pc)

x = 0.301 · y = -0.573 · z = 0.762

Equatorial (J2000)

RA 297.73636° · Dec 49.63710°

Galactic ℓ, b

83.233° · 11.505°

Ecliptic λ, β

323.522° · 67.986°

HTM-20 index

1466364307

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