Confirmed Exoplanet Discovered 2014

Kepler-153 b

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-153, located approximately 1,498.3 light-years from Earth.

Key parameters at a glance

  • A radius of 2.92 Earth radii
  • A mass of 8.85 Earth masses
  • Surface gravity around 1.04 g
  • An orbital period of 18.870 days
  • Semi-major axis 0.1290 AU
  • Equilibrium temperature 621 K (348 °C)
  • Distance from Earth 1,498.26 light-years
  • Earth Similarity Index 0.383
  • Travel time at Voyager 1 speed 26,421,748 years

1 sibling around Kepler-153

Kepler-153 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-153 b this Sub-Neptune 2.92 8.85 18.870 621 2014
Kepler-153 c Sub-Neptune 2.53 6.94 46.902 458 2014

Kepler-153 b Planet Profile

Physical Specs

Radius
2.92 R⊕
Radius (Jupiter)
0.261 R♃
Mass
8.85 M⊕
Mass (Jupiter)
0.028 M♃
Density
1.95 g/cm³
Surface Gravity
1.04 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.383
HZ Position Inner
Controversial No

Discovery

Year 2014
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#600of 1978

top 30.3%

This planet

2.92R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-769 b 2.92 R⊕ Kepler-1475 b 2.92 R⊕ Kepler-709 b 2.92 R⊕
Metric Earth Kepler-153 b Jupiter
Radius (R⊕)1.002.9211.21
Mass (M⊕)1.008.85317.83
Density (g/cm³)5.511.951.33
Surface Gravity (g)1.001.042.53
Insolation (S⊕)1.0021.610.037

Star Catalogue Identifiers

TIC

TIC 48188777

Gaia DR2

Gaia DR2 2119711156811669120

Gaia DR3

Gaia DR3 2119711156811669120

System

Kepler-153

Percentile among Sub-Neptune cohort

Radius 2.920 R⊕ · percentile 69 / cohort 1978
Mass 8.850 M⊕ · percentile 63 / cohort 1978
Orbital period 18.87 d · percentile 60 / cohort 1946
Distance 459.37 pc · percentile 45 / cohort 1975
ESI 0.383 · percentile 49 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
18.870 days
Semi-major axis
0.1290 AU
Eccentricity
0.000
Inclination
89.98 °

Year Length

A year here lasts approximately 18.87 Earth days (5.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1290 AU.

Transit Fingerprint

Depth

0.110 %

Duration

3.075 h

Impact parameter b

0.030

Rp / R★

0.029843

Transit midpoint (BJD)

2,455,011.7105

Photometric dip

Transit produces a flux drop of 1,097 ppm lasting ≈ 3.08 h.

Extended Orbital Architecture

Planet / star radius ratio

0.029843

Semi-major axis / stellar radius

47.270

Impact parameter (b)

0.030

Transit mid-time (BJD)

2,455,011.7105

Angular separation (arcsec)

0.28100

Eq. Temperature

621K

(348 °C)

Insolation (S⊕)

21.61

Earth = 1.00

Earth Similarity (ESI)

0.383

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

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-153

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,404 K — cooler than the Sun (5,778 K)

Estimated Age

13.80 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.892 R☉

Stellar Mass

0.756 M☉

Metallicity [Fe/H]

-0.27

Extended Stellar Properties

Surface gravity (log g)

4.446 dex

Stellar density

1.940 g/cm³

Metallicity ratio

[Fe/H]

Distance
459.37 parsec
Light-years 1,498.26 ly
V-band magnitude
14.39 mag
Voyager-speed travel 26,421,748 yr

Multi-band Host Photometry — 16 bands

9.215.615.61B14.39V14.25Gaia14.26Kepler13.72TESS14.86Sloan g14.23Sloan r14.00Sloan i13.96Sloan z12.95J12.48H12.42K12.40W112.44W212.33W39.15W4

Astrometric Data

Parallax

2.148 mas

Total Proper Motion

16.892 mas/yr

PM Right Ascension

-5.18 mas/yr

PM Declination

-16.08 mas/yr

Galactic Cartesian (pc)

x = 0.144 · y = -0.650 · z = 0.746

Equatorial (J2000)

RA 282.46050° · Dec 48.25703°

Galactic ℓ, b

77.767° · 20.142°

Ecliptic λ, β

295.609° · 70.590°

HTM-20 index

2031141217

Similar Worlds

Kepler-277 b

Sub-Neptune · G-type yellow (Sun-like)

Radius 2.92 R⊕ · 3,185.4 ly

Kepler-1878 b

Sub-Neptune · G-type yellow (Sun-like)

Radius 2.92 R⊕ · 4,873.7 ly

TOI-1203.01

Sub-Neptune · G-type yellow (Sun-like)

Radius 2.92 R⊕ · 212.0 ly

HD 136352 c

Sub-Neptune · G-type yellow (Sun-like)

Radius 2.92 R⊕ · 47.9 ly

HD 63935 b

Sub-Neptune · G-type yellow (Sun-like)

Radius 2.92 R⊕ · 159.7 ly

Kepler-1887 b

Sub-Neptune · G-type yellow (Sun-like)

Radius 2.92 R⊕ · 4,455.9 ly

Explore Related Categories

Sub-Neptune Planets Transit Discoveries Kepler Mission G-type yellow (Sun-like) Hosts