Confirmed Exoplanet Discovered 2022

HD 22532 b

A gas giant orbiting the g-type yellow (sun-like) HD 22532, located approximately 525.7 light-years from Earth.

Key parameters at a glance

  • A radius of 13.40 Earth radii
  • A mass of 673.80 Earth masses
  • Surface gravity around 3.75 g
  • An orbital period of 872.600 days
  • Semi-major axis 1.9000 AU
  • Distance from Earth 525.71 light-years
  • Earth Similarity Index 0.369
  • Travel time at Voyager 1 speed 9,270,861 years

HD 22532 b Planet Profile

Physical Specs

Radius
13.40 R⊕
Radius (Jupiter)
1.190 R♃
Mass
673.80 M⊕
Mass (Jupiter)
2.120 M♃
Density
1.54 g/cm³
Surface Gravity
3.75 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.369
HZ Position Unknown
Controversial No

Discovery

Year 2022
Method Radial Velocity
Facility La Silla Observatory
Telescope 1.2 m Leonhard Euler Telescope

Size rank in cohort

Rank by radius

#730of 1771

top 41.2%

This planet

13.40R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth HD 22532 b Jupiter
Radius (R⊕)1.0013.4011.21
Mass (M⊕)1.00673.80317.83
Density (g/cm³)5.511.541.33
Surface Gravity (g)1.003.752.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Minimum mass (M sin i) 673.796 M⊕ Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD

HD 22532

TIC

TIC 200851704

Gaia DR2

Gaia DR2 4832768399133598080

Gaia DR3

Gaia DR3 4832768399133598080

System

HD 22532

Percentile among Gas Giant cohort

Radius 13.400 R⊕ · percentile 56 / cohort 1771
Mass 673.796 M⊕ · percentile 56 / cohort 1747
Orbital period 872.60 d · percentile 75 / cohort 1533
Distance 161.18 pc · percentile 46 / cohort 1759
ESI 0.369 · percentile 76 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
872.600 days
Semi-major axis
1.9000 AU
Eccentricity
0.030
Inclination
°

Year Length

A year here lasts about 2.39 Earth years on a nearly circular orbit at a mean orbital distance of 1.9000 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.369

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Ottoni et al. 2022

Instrument

CORALIE Spectrograph

Publication

2022-01

Observation locale

Ground

Host System: HD 22532

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,038 K — cooler than the Sun (5,778 K)

Estimated Age

Stellar Radius

5.690 R☉

Stellar Mass

1.570 M☉

Metallicity [Fe/H]

-0.19

Distance
161.18 parsec
Light-years 525.71 ly
V-band magnitude
7.85 mag
Voyager-speed travel 9,270,861 yr

Multi-band Host Photometry — 11 bands

5.58.78.73B7.85V7.60Gaia7.05TESS6.23J5.77H5.67K5.63W15.51W25.63W35.56W4

Astrometric Data

Parallax

6.175 mas

Total Proper Motion

62.969 mas/yr

PM Right Ascension

54.89 mas/yr

PM Declination

30.86 mas/yr

Galactic Cartesian (pc)

x = 0.384 · y = 0.525 · z = -0.759

Equatorial (J2000)

RA 53.81485° · Dec -49.41727°

Galactic ℓ, b

259.593° · -51.588°

Ecliptic λ, β

25.062° · -64.912°

HTM-20 index

1530385359

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