Confirmed Exoplanet Discovered 2016

Kepler-154 f

A super-earth orbiting the g-type yellow (sun-like) Kepler-154, located approximately 2,985.0 light-years from Earth.

Key parameters at a glance

  • A radius of 1.50 Earth radii
  • A mass of 2.86 Earth masses
  • Surface gravity around 1.27 g
  • An orbital period of 9.919 days
  • Semi-major axis 0.0883 AU
  • Equilibrium temperature 838 K (565 °C)
  • Distance from Earth 2,985.02 light-years
  • Earth Similarity Index 0.360
  • Travel time at Voyager 1 speed 52,640,804 years

4 siblings around Kepler-154

Kepler-154 f shares its host star with 4 other confirmed planets. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-154 e Super-Earth 1.50 2.86 3.933 1,140 2016
Kepler-154 f this Super-Earth 1.50 2.86 9.919 838 2016
Kepler-154 d Sub-Neptune 3.84 14.10 20.550 657 2016
Kepler-154 b Sub-Neptune 2.26 5.73 33.041 561 2014
Kepler-154 c Sub-Neptune 2.95 9.01 62.303 454 2014

Kepler-154 f Planet Profile

Physical Specs

Radius
1.50 R⊕
Radius (Jupiter)
0.134 R♃
Mass
2.86 M⊕
Mass (Jupiter)
0.009 M♃
Density
4.66 g/cm³
Surface Gravity
1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.360
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

#748of 1176

top 63.5%

This planet

1.50R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-154 f Jupiter
Radius (R⊕)1.001.5011.21
Mass (M⊕)1.002.86317.83
Density (g/cm³)5.514.661.33
Surface Gravity (g)1.001.272.53
Insolation (S⊕)1.00139.880.037

Star Catalogue Identifiers

TIC

TIC 416282268

Gaia DR2

Gaia DR2 2133022669212268800

Gaia DR3

Gaia DR3 2133022669212268800

System

Kepler-154

Percentile among Super-Earth cohort

Radius 1.500 R⊕ · percentile 35 / cohort 1176
Mass 2.860 M⊕ · percentile 33 / cohort 1176
Orbital period 9.92 d · percentile 65 / cohort 1164
Distance 915.21 pc · percentile 76 / cohort 1171
ESI 0.360 · percentile 53 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
9.919 days
Semi-major axis
0.0883 AU
Eccentricity
0.000
Inclination
89.47 °

Year Length

A year here lasts approximately 9.92 Earth days (2.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0883 AU.

Transit Fingerprint

Depth

0.019 %

Duration

4.240 h

Impact parameter b

0.163

Rp / R★

0.013894

Transit midpoint (BJD)

2,454,969.8766

Photometric dip

Transit produces a flux drop of 187 ppm lasting ≈ 4.24 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013894

Semi-major axis / stellar radius

17.510

Impact parameter (b)

0.163

Transit mid-time (BJD)

2,454,969.8766

Angular separation (arcsec)

0.09650

Eq. Temperature

838K

(565 °C)

Insolation (S⊕)

139.88

Earth = 1.00

Earth Similarity (ESI)

0.360

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-154

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,769 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.980 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.820 g/cm³

Metallicity ratio

[Fe/H]

Distance
915.21 parsec
Light-years 2,985.02 ly
V-band magnitude
14.65 mag
Voyager-speed travel 52,640,804 yr

Multi-band Host Photometry — 16 bands

9.515.115.11B14.65V14.51Gaia14.53Kepler14.05TESS14.98Sloan g14.49Sloan r14.34Sloan i14.28Sloan z13.39J13.09H12.99K12.88W112.94W212.81W39.53W4

Astrometric Data

Parallax

1.064 mas

Total Proper Motion

5.422 mas/yr

PM Right Ascension

-2.66 mas/yr

PM Declination

4.73 mas/yr

Galactic Cartesian (pc)

x = 0.218 · y = -0.606 · z = 0.765

Equatorial (J2000)

RA 289.78054° · Dec 49.89656°

Galactic ℓ, b

81.168° · 16.242°

Ecliptic λ, β

310.871° · 70.542°

HTM-20 index

953134717

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