Confirmed Exoplanet Discovered 2016

Kepler-1454 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-1454, located approximately 2,545.9 light-years from Earth.

Key parameters at a glance

  • A radius of 1.88 Earth radii
  • A mass of 4.19 Earth masses
  • Surface gravity around 1.19 g
  • An orbital period of 47.032 days
  • Semi-major axis 0.2447 AU
  • Equilibrium temperature 492 K (219 °C)
  • Distance from Earth 2,545.86 light-years
  • Earth Similarity Index 0.559
  • Travel time at Voyager 1 speed 44,896,289 years

Kepler-1454 b Planet Profile

Physical Specs

Radius
1.88 R⊕
Radius (Jupiter)
0.168 R♃
Mass
4.19 M⊕
Mass (Jupiter)
0.013 M♃
Density
3.47 g/cm³
Surface Gravity
1.19 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.559
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

#153of 1176

top 12.9%

This planet

1.88R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1454 b Jupiter
Radius (R⊕)1.001.8811.21
Mass (M⊕)1.004.19317.83
Density (g/cm³)5.513.471.33
Surface Gravity (g)1.001.192.53
Insolation (S⊕)1.009.080.037

Star Catalogue Identifiers

TIC

TIC 267570002

Gaia DR2

Gaia DR2 2131804479047342336

Gaia DR3

Gaia DR3 2131804479047342336

System

Kepler-1454

Percentile among Super-Earth cohort

Radius 1.880 R⊕ · percentile 86 / cohort 1176
Mass 4.190 M⊕ · percentile 79 / cohort 1176
Orbital period 47.03 d · percentile 96 / cohort 1164
Distance 780.57 pc · percentile 66 / cohort 1171
ESI 0.559 · percentile 78 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
47.032 days
Semi-major axis
0.2447 AU
Eccentricity
0.000
Inclination
89.85 °

Year Length

A year here lasts approximately 47.03 Earth days (12.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2447 AU.

Transit Fingerprint

Depth

0.037 %

Duration

5.906 h

Impact parameter b

0.161

Rp / R★

0.020335

Transit midpoint (BJD)

2,455,008.4745

Photometric dip

Transit produces a flux drop of 368 ppm lasting ≈ 5.91 h.

Extended Orbital Architecture

Planet / star radius ratio

0.020335

Semi-major axis / stellar radius

61.250

Impact parameter (b)

0.161

Transit mid-time (BJD)

2,455,008.4745

Angular separation (arcsec)

0.31300

Eq. Temperature

492K

(219 °C)

Insolation (S⊕)

9.08

Earth = 1.00

Earth Similarity (ESI)

0.559

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-1454

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,448 K — cooler than the Sun (5,778 K)

Estimated Age

4.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.860 R☉

Stellar Mass

0.900 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

1.965 g/cm³

Metallicity ratio

[Fe/H]

Distance
780.57 parsec
Light-years 2,545.86 ly
V-band magnitude
15.01 mag
Voyager-speed travel 44,896,289 yr

Multi-band Host Photometry — 16 bands

9.316.116.07B15.01V14.90Gaia14.90Kepler14.39TESS15.44Sloan g14.85Sloan r14.67Sloan i14.58Sloan z13.62J13.24H13.19K13.14W113.17W212.94W39.29W4

Astrometric Data

Parallax

1.253 mas

Total Proper Motion

12.533 mas/yr

PM Right Ascension

-4.91 mas/yr

PM Declination

-11.53 mas/yr

Galactic Cartesian (pc)

x = 0.162 · y = -0.638 · z = 0.753

Equatorial (J2000)

RA 284.22333° · Dec 48.83172°

Galactic ℓ, b

78.748° · 19.227°

Ecliptic λ, β

299.485° · 70.818°

HTM-20 index

-456903923

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