Confirmed Exoplanet Discovered 2016

Kepler-1453 b

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-1453, located approximately 3,901.0 light-years from Earth.

Key parameters at a glance

  • A radius of 2.67 Earth radii
  • A mass of 7.61 Earth masses
  • Surface gravity around 1.07 g
  • An orbital period of 47.161 days
  • Semi-major axis 0.2620 AU
  • Equilibrium temperature 503 K (230 °C)
  • Distance from Earth 3,900.96 light-years
  • Earth Similarity Index 0.482
  • Travel time at Voyager 1 speed 68,793,359 years

Kepler-1453 b Planet Profile

Physical Specs

Radius
2.67 R⊕
Radius (Jupiter)
0.238 R♃
Mass
7.61 M⊕
Mass (Jupiter)
0.024 M♃
Density
2.20 g/cm³
Surface Gravity
1.07 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.482
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

#904of 1978

top 45.7%

This planet

2.67R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-1453 b Jupiter
Radius (R⊕)1.002.6711.21
Mass (M⊕)1.007.61317.83
Density (g/cm³)5.512.201.33
Surface Gravity (g)1.001.072.53
Insolation (S⊕)1.0011.890.037

Star Catalogue Identifiers

TIC

TIC 158175366

Gaia DR2

Gaia DR2 2130762107666059136

Gaia DR3

Gaia DR3 2130762107666059136

System

Kepler-1453

Percentile among Sub-Neptune cohort

Radius 2.670 R⊕ · percentile 53 / cohort 1978
Mass 7.610 M⊕ · percentile 49 / cohort 1978
Orbital period 47.16 d · percentile 84 / cohort 1946
Distance 1,196.04 pc · percentile 86 / cohort 1975
ESI 0.482 · percentile 68 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
47.161 days
Semi-major axis
0.2620 AU
Eccentricity
0.000
Inclination
89.98 °

Year Length

A year here lasts approximately 47.16 Earth days (12.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2620 AU.

Transit Fingerprint

Depth

0.082 %

Duration

4.059 h

Impact parameter b

0.028

Rp / R★

0.026018

Transit midpoint (BJD)

2,454,983.2532

Photometric dip

Transit produces a flux drop of 816 ppm lasting ≈ 4.06 h.

Extended Orbital Architecture

Planet / star radius ratio

0.026018

Semi-major axis / stellar radius

92.167

Impact parameter (b)

0.028

Transit mid-time (BJD)

2,454,983.2532

Angular separation (arcsec)

0.21900

Eq. Temperature

503K

(230 °C)

Insolation (S⊕)

11.89

Earth = 1.00

Earth Similarity (ESI)

0.482

0 = alien, 1 = Earth-identical

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

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Transit timing variations

Gravitational interactions from neighbours have been detected.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-1453

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,665 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.940 R☉

Stellar Mass

0.970 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.480 dex

Stellar density

6.423 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,196.04 parsec
Light-years 3,900.96 ly
V-band magnitude
15.70 mag
Voyager-speed travel 68,793,359 yr

Multi-band Host Photometry — 16 bands

9.516.416.40B15.70V15.53Gaia15.57Kepler15.05TESS16.05Sloan g15.50Sloan r15.37Sloan i15.30Sloan z14.39J14.03H14.00K13.95W114.05W213.19W39.51W4

Astrometric Data

Parallax

0.808 mas

Total Proper Motion

3.948 mas/yr

PM Right Ascension

-3.81 mas/yr

PM Declination

-1.04 mas/yr

Galactic Cartesian (pc)

x = 0.186 · y = -0.643 · z = 0.743

Equatorial (J2000)

RA 286.12550° · Dec 47.94756°

Galactic ℓ, b

78.337° · 17.735°

Ecliptic λ, β

302.233° · 69.589°

HTM-20 index

-103618106

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