Key parameters at a glance

A radius of 12.20 Earth radii
A mass of 5,403.11 Earth masses
Surface gravity around 36.30 g
An orbital period of 1,675.000 days
Semi-major axis 2.9000 AU
Distance from Earth 2,752.96 light-years
Earth Similarity Index 0.312
Travel time at Voyager 1 speed 48,548,369 years

1 sibling around CoRoT-20

CoRoT-20 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
CoRoT-20 b	Neptune-like	9.42	1,366.67	9.243	1,024	2011
CoRoT-20 c this	Gas Giant	12.20	5,403.11	1,675.000	—	2018

CoRoT-20 c Planet Profile

Physical Specs

Radius

12.20 R⊕

Radius (Jupiter)

1.090 R♃

Mass

5,403.11 M⊕

Mass (Jupiter)

17.000 M♃

Density

16.40 g/cm³

Surface Gravity

36.30 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.312

HZ Position Unknown

Controversial No

Discovery

Year 2018

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1410of 1771

top 79.6%

This planet

12.20R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

FU Tau b 12.20 R⊕ HD 168443 c 12.20 R⊕ HIP 5158 c 12.20 R⊕

Metric	Earth	CoRoT-20 c	Jupiter
Radius (R⊕)	1.00	12.20	11.21
Mass (M⊕)	1.00	5,403.11	317.83
Density (g/cm³)	5.51	16.40	1.33
Surface Gravity (g)	1.00	36.30	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	5,403.110 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 234825296

Gaia DR2

Gaia DR2 3120122805143587328

Gaia DR3

Gaia DR3 3120122805143587328

System

CoRoT-20

Percentile among Gas Giant cohort

Radius 12.200 R⊕ · percentile 19 / cohort 1771

Mass 5,403.110 M⊕ · percentile 95 / cohort 1747

Orbital period 1,675.00 d · percentile 83 / cohort 1533

Distance 844.06 pc · percentile 84 / cohort 1759

ESI 0.312 · percentile 61 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1,675.000 days

Semi-major axis

2.9000 AU

Eccentricity

0.600

Inclination

— °

Year Length

A year here lasts about 4.59 Earth years on a highly eccentric trajectory at a mean orbital distance of 2.9000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.312

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Rey et al. 2018

Instrument

Multiple Instruments

Publication

2018-11

Observation locale

Ground

Discovery cohort

Planets confirmed in 2018 at Multiple Observatories (5 shown).

LHS 1140 c · Super-Earth TCP J05074264+2447555 b · Neptune-like HD 238914 b · Gas Giant TYC 3318-01333-1 b · Gas Giant BD+48 740 b · Gas Giant

Host System: CoRoT-20

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,880 K — hotter than the Sun (5,778 K)

Estimated Age

0.10 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.020 R☉

Stellar Mass

1.140 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.350 dex

Stellar density

1.510 g/cm³

Systemic radial velocity

60.62 km/s

Rotational v·sin i

4.50 km/s

Distance

844.06 parsec

Light-years 2,752.96 ly

V-band magnitude

14.63 mag

Voyager-speed travel 48,548,369 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

1.157 mas

Total Proper Motion

2.816 mas/yr

PM Right Ascension

-0.26 mas/yr

PM Declination

-2.80 mas/yr

Galactic Cartesian (pc)

x = -0.134 · y = 0.991 · z = 0.004

Equatorial (J2000)

RA 97.72042° · Dec 0.22689°

Galactic ℓ, b

210.381° · -4.469°

Ecliptic λ, β

98.387° · -22.988°

HTM-20 index

-1653671891