Key parameters at a glance

A mass of 5,196.52 Earth masses
An orbital period of 2,840.000 days
Semi-major axis 3.7300 AU
Distance from Earth 656.68 light-years
Travel time at Voyager 1 speed 11,580,480 years

1 sibling around WASP-53

WASP-53 c 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
WASP-53 b	Gas Giant	12.04	677.61	3.310	1,053	2017
WASP-53 c this	Unclassified	—	5,196.52	2,840.000	—	2017

WASP-53 c Planet Profile

Physical Specs

Radius

— R⊕

Radius (Jupiter)

— R♃

Mass

5,196.52 M⊕

Mass (Jupiter)

16.350 M♃

Density

— g/cm³

Surface Gravity

— g (Earth)

Classification

Planet Type

Unclassified

ESI Score —

HZ Position Unknown

Controversial No

Discovery

Year 2017

Method Radial Velocity

Facility Multiple Facilities

Telescope Multiple Telescopes

Metric	Earth	WASP-53 c	Jupiter
Radius (R⊕)	1.00	—	11.21
Mass (M⊕)	1.00	5,196.52	317.83
Density (g/cm³)	5.51	—	1.33
Surface Gravity (g)	1.00	—	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	5,196.521 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 268766053

Gaia DR2

Gaia DR2 5136559128264765184

Gaia DR3

Gaia DR3 5136559128264765184

System

WASP-53

Percentile among Unclassified cohort

Mass 5,196.521 M⊕ · percentile 95 / cohort 42

Orbital period 2,840.00 d · percentile 88 / cohort 43

Distance 201.34 pc · percentile 81 / cohort 43

Orbit & Habitability

Orbital Dynamics

Period

2,840.000 days

Semi-major axis

3.7300 AU

Eccentricity

0.837

Inclination

— °

Year Length

A year here lasts about 7.78 Earth years on a highly eccentric trajectory at a mean orbital distance of 3.7300 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

—

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Triaud et al. 2017

Instrument

Multiple Instruments

Publication

2017-05

Observation locale

Ground

Discovery cohort

Planets confirmed in 2017 at Multiple Facilities (4 shown).

PSR B0329+54 b · Rocky Terrestrial TAP 26 b · Gas Giant WASP-53 b · Gas Giant WASP-81 b · Gas Giant

Host System: WASP-53

Spectral Class

K-type orange

Effective Temperature

4,953 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.798 R☉

Stellar Mass

0.839 M☉

Metallicity [Fe/H]

0.22

Extended Stellar Properties

Surface gravity (log g)

4.553 dex

Stellar density

2.323 g/cm³

Systemic radial velocity

-3.03 km/s

Rotational v·sin i

0.86 km/s

Metallicity ratio

[Fe/H]

Distance

201.34 parsec

Light-years 656.68 ly

V-band magnitude

12.59 mag

Voyager-speed travel 11,580,480 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

4.938 mas

Total Proper Motion

12.227 mas/yr

PM Right Ascension

-9.08 mas/yr

PM Declination

8.19 mas/yr

Galactic Cartesian (pc)

x = 0.794 · y = 0.495 · z = -0.353

Equatorial (J2000)

RA 31.90916° · Dec -20.66184°

Galactic ℓ, b

196.640° · -71.448°

Ecliptic λ, β

21.529° · -31.364°

HTM-20 index

-1325311305

Similar Worlds

BD-08 2823 b

Unclassified · K-type orange

Radius — R⊕ · 134.8 ly

HD 181433 b

Unclassified · K-type orange

Radius — R⊕ · 87.7 ly

HD 215152 c

Unclassified · K-type orange

Radius — R⊕ · 70.4 ly

BD+05 4868 A b

Unclassified · K-type orange

Radius — R⊕ · 142.1 ly

HD 40307 c

Unclassified · K-type orange

Radius — R⊕ · 42.2 ly

HD 7199 b

Unclassified · K-type orange

Radius — R⊕ · 117.9 ly

Explore Related Categories

Unclassified Planets Radial Velocity Discoveries Multiple Facilities Mission K-type orange Hosts