Confirmed Exoplanet Discovered 2018

K2-160 b

A sub-neptune orbiting the g-type yellow (sun-like) K2-160, located approximately 1,028.6 light-years from Earth.

Key parameters at a glance

  • A radius of 3.18 Earth radii
  • A mass of 10.20 Earth masses
  • Surface gravity around 1.01 g
  • An orbital period of 3.706 days
  • Distance from Earth 1,028.58 light-years
  • Earth Similarity Index 0.620
  • Travel time at Voyager 1 speed 18,138,925 years

K2-160 b Planet Profile

Physical Specs

Radius
3.18 R⊕
Radius (Jupiter)
0.284 R♃
Mass
10.20 M⊕
Mass (Jupiter)
0.032 M♃
Density
1.75 g/cm³
Surface Gravity
1.01 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.620
HZ Position Unknown
Controversial No

Discovery

Year 2018
Method Transit
Facility K2
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#374of 1978

top 18.9%

This planet

3.18R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth K2-160 b Jupiter
Radius (R⊕)1.003.1811.21
Mass (M⊕)1.0010.20317.83
Density (g/cm³)5.511.751.33
Surface Gravity (g)1.001.012.53
Insolation (S⊕)1.000.037

Star Catalogue Identifiers

TIC

TIC 349456525

Gaia DR2

Gaia DR2 3598004677793811584

Gaia DR3

Gaia DR3 3598004677793811584

System

K2-160

Percentile among Sub-Neptune cohort

Radius 3.178 R⊕ · percentile 81 / cohort 1978
Mass 10.200 M⊕ · percentile 74 / cohort 1978
Orbital period 3.71 d · percentile 7 / cohort 1946
Distance 315.36 pc · percentile 36 / cohort 1975
ESI 0.620 · percentile 85 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
3.706 days
Semi-major axis
AU
Eccentricity
Inclination
88.25 °

Year Length

A year here lasts approximately 3.71 Earth days (1.0% of a terrestrial year).

Transit Fingerprint

Rp / R★

0.031888

Transit midpoint (BJD)

2,457,585.6664

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.620

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Mayo et al. 2018

Instrument

Kepler CCD Array

Publication

2018-03

Observation locale

Space

Host System: K2-160

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,649 K — cooler than the Sun (5,778 K)

Estimated Age

Stellar Radius

0.914 R☉

Stellar Mass

0.983 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.610 dex

Stellar density

1.931 g/cm³

Systemic radial velocity

-10.34 km/s

Metallicity ratio

[Fe/H]

Distance
315.36 parsec
Light-years 1,028.58 ly
V-band magnitude
12.84 mag
Voyager-speed travel 18,138,925 yr

Multi-band Host Photometry — 17 bands

8.615.115.09U13.30B12.84V12.54Gaia12.49Kepler12.08TESS13.27Sloan g12.59Sloan r12.43Sloan i13.04Sloan z11.43J11.09H11.04K10.94W110.99W210.89W38.56W4

Astrometric Data

Parallax

3.143 mas

Total Proper Motion

16.055 mas/yr

PM Right Ascension

-16.05 mas/yr

PM Declination

0.36 mas/yr

Galactic Cartesian (pc)

x = -0.996 · y = -0.071 · z = -0.062

Equatorial (J2000)

RA 184.05452° · Dec -3.55309°

Galactic ℓ, b

286.097° · 58.163°

Ecliptic λ, β

185.127° · -1.650°

HTM-20 index

-18656997

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