Confirmed Exoplanet Discovered 2018

WASP-160 B b

A gas giant orbiting the k-type orange WASP-160 B, located approximately 940.4 light-years from Earth.

Key parameters at a glance

  • A radius of 12.22 Earth radii
  • A mass of 88.36 Earth masses
  • Surface gravity around 0.59 g
  • An orbital period of 3.768 days
  • Semi-major axis 0.0452 AU
  • Equilibrium temperature 1,119 K (846 °C)
  • Distance from Earth 940.39 light-years
  • Earth Similarity Index 0.106
  • Travel time at Voyager 1 speed 16,583,822 years
  • Almost certainly tidally locked to its host star given the close orbit

WASP-160 B b Planet Profile

Physical Specs

Radius
12.22 R⊕
Radius (Jupiter)
1.090 R♃
Mass
88.36 M⊕
Mass (Jupiter)
0.278 M♃
Density
0.28 g/cm³
Surface Gravity
0.59 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.106
HZ Position Inner
Controversial No

Discovery

Year 2018
Method Transit
Facility SuperWASP-South
Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#1404of 1771

top 79.2%

This planet

12.22R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth WASP-160 B b Jupiter
Radius (R⊕)1.0012.2211.21
Mass (M⊕)1.0088.36317.83
Density (g/cm³)5.510.281.33
Surface Gravity (g)1.000.592.53
Insolation (S⊕)1.00210.580.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 88.357 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 32949762

Gaia DR2

Gaia DR2 2910755484609597312

Gaia DR3

Gaia DR3 2910755484609597312

System

WASP-160

Percentile among Gas Giant cohort

Radius 12.218 R⊕ · percentile 21 / cohort 1771
Mass 88.357 M⊕ · percentile 4 / cohort 1747
Orbital period 3.77 d · percentile 26 / cohort 1533
Distance 288.33 pc · percentile 59 / cohort 1759
ESI 0.106 · percentile 28 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
3.768 days
Semi-major axis
0.0452 AU
Eccentricity
0.000
Inclination
88.97 °

Year Length

A year here lasts approximately 3.77 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0452 AU.

Transit Fingerprint

Depth

1.663 %

Duration

2.844 h

Impact parameter b

0.200

Rp / R★

0.129000

Transit midpoint (BJD)

2,457,383.6549

Photometric dip

Transit produces a flux drop of 16,630 ppm lasting ≈ 2.84 h.

Extended Orbital Architecture

Planet / star radius ratio

0.129000

Semi-major axis / stellar radius

11.250

Impact parameter (b)

0.200

RV semi-amplitude (K)

39.900 m/s

Transit mid-time (BJD)

2,457,383.6549

Angular separation (arcsec)

0.15700

Eq. Temperature

1,119K

(846 °C)

Insolation (S⊕)

210.58

Earth = 1.00

Earth Similarity (ESI)

0.106

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.

Detection Signatures

Transit photometry

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

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Lendl et al. 2019

Instrument

iKon-L CCD Camera

Publication

2019-01

Observation locale

Ground

Host System: WASP-160 B

Spectral Class

K-type orange

Effective Temperature

5,298 K — cooler than the Sun (5,778 K)

Estimated Age

9.75 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.868 R☉

Stellar Mass

0.870 M☉

Metallicity [Fe/H]

0.27

Extended Stellar Properties

Surface gravity (log g)

4.496 dex

Stellar density

1.890 g/cm³

Systemic radial velocity

-6.14 km/s

Metallicity ratio

[Fe/H]

Distance
288.33 parsec
Light-years 940.39 ly
V-band magnitude
13.04 mag
Voyager-speed travel 16,583,822 yr

Multi-band Host Photometry — 11 bands

8.414.013.99B13.04V12.88Gaia12.34TESS11.59J11.17H11.06K11.02W111.07W211.04W38.40W4

Astrometric Data

Parallax

3.440 mas

Total Proper Motion

44.054 mas/yr

PM Right Ascension

26.98 mas/yr

PM Declination

-34.83 mas/yr

Galactic Cartesian (pc)

x = 0.036 · y = 0.885 · z = -0.464

Equatorial (J2000)

RA 87.67956° · Dec -27.62332°

Galactic ℓ, b

232.673° · -24.702°

Ecliptic λ, β

86.726° · -51.036°

HTM-20 index

2120114145

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