Key parameters at a glance

A radius of 4.88 Earth radii
A mass of 12.20 Earth masses
Surface gravity around 0.51 g
An orbital period of 9.756 days
Semi-major axis 0.0920 AU
Equilibrium temperature 885 K (612 °C)
Distance from Earth 2,045.51 light-years
Earth Similarity Index 0.158
Travel time at Voyager 1 speed 36,072,628 years

CoRoT-22 b Planet Profile

Physical Specs

Radius

4.88 R⊕

Radius (Jupiter)

0.435 R♃

Mass

12.20 M⊕

Mass (Jupiter)

0.038 M♃

Density

0.25 g/cm³

Surface Gravity

0.51 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.158

HZ Position Unknown

Controversial No

Discovery

Year 2014

Method Transit

Facility CoRoT

Telescope 0.27 m CoRoT Telescope

Size rank in cohort

Rank by radius

#401of 574

top 69.7%

This planet

4.88R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

TOI-6109 b 4.87 R⊕ Kepler-858 b 4.87 R⊕ GJ 3293 c 4.87 R⊕

Metric	Earth	CoRoT-22 b	Jupiter
Radius (R⊕)	1.00	4.88	11.21
Mass (M⊕)	1.00	12.20	317.83
Density (g/cm³)	5.51	0.25	1.33
Surface Gravity (g)	1.00	0.51	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	12.200 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 323094535

Gaia DR2

Gaia DR2 4285572454508522496

Gaia DR3

Gaia DR3 4285572454508522496

System

CoRoT-22

Percentile among Neptune-like cohort

Radius 4.880 R⊕ · percentile 30 / cohort 574

Mass 12.200 M⊕ · percentile 5 / cohort 574

Orbital period 9.76 d · percentile 36 / cohort 524

Distance 627.16 pc · percentile 61 / cohort 572

ESI 0.158 · percentile 17 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

9.756 days

Semi-major axis

0.0920 AU

Eccentricity

0.077

Inclination

89.75 °

Year Length

A year here lasts approximately 9.76 Earth days (2.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0920 AU.

Transit Fingerprint

Duration

4.492 h

Impact parameter b

0.012

Rp / R★

0.039270

Transit midpoint (BJD)

2,454,598.4201

Extended Orbital Architecture

Planet / star radius ratio

0.039270

Semi-major axis / stellar radius

17.300

Impact parameter (b)

0.012

RV semi-amplitude (K)

3.700 m/s

Transit mid-time (BJD)

2,454,598.4201

Long. of periastron (ω)

210.00°

Angular separation (arcsec)

0.14700

Eq. Temperature

885K

(612 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.158

0 = alien, 1 = Earth-identical

Insufficient insolation data — the surface is too hot to retain surface water.

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

Moutou et al. 2014

Instrument

CoRoT CCD Array

Publication

2014-08

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at CoRoT (3 shown).

CoRoT-24 c · Neptune-like CoRoT-24 b · Sub-Neptune CoRoT-27 b · Gas Giant

Host System: CoRoT-22

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,939 K — hotter than the Sun (5,778 K)

Estimated Age

3.30 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.136 R☉

Stellar Mass

1.099 M☉

Metallicity [Fe/H]

0.17

Extended Stellar Properties

Surface gravity (log g)

4.361 dex

Stellar density

1.027 g/cm³

Rotational v·sin i

4.00 km/s

Metallicity ratio

[Fe/H]

Distance

627.16 parsec

Light-years 2,045.51 ly

V-band magnitude

13.82 mag

Voyager-speed travel 36,072,628 yr

Multi-band Host Photometry — 14 bands

Astrometric Data

Parallax

1.566 mas

Total Proper Motion

2.315 mas/yr

PM Right Ascension

2.02 mas/yr

PM Declination

1.12 mas/yr

Galactic Cartesian (pc)

x = 0.184 · y = -0.977 · z = 0.108

Equatorial (J2000)

RA 280.66714° · Dec 6.21917°

Galactic ℓ, b

37.483° · 4.775°

Ecliptic λ, β

282.167° · 29.209°

HTM-20 index

1319461051