Confirmed Exoplanet Discovered 2008

HD 60532 b

A gas giant orbiting the f-type yellow-white HD 60532, located approximately 84.7 light-years from Earth.

Key parameters at a glance

  • A radius of 13.80 Earth radii
  • A mass of 336.90 Earth masses
  • Surface gravity around 1.77 g
  • An orbital period of 201.900 days
  • Semi-major axis 0.7700 AU
  • Distance from Earth 84.71 light-years
  • Earth Similarity Index 0.312
  • Travel time at Voyager 1 speed 1,493,824 years

1 sibling around HD 60532

HD 60532 b 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
HD 60532 b this Gas Giant 13.80 336.90 201.900 2008
HD 60532 c Gas Giant 13.30 797.75 600.100 2008

HD 60532 b Planet Profile

Physical Specs

Radius
13.80 R⊕
Radius (Jupiter)
1.230 R♃
Mass
336.90 M⊕
Mass (Jupiter)
1.060 M♃
Density
0.70 g/cm³
Surface Gravity
1.77 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.312
HZ Position Unknown
Controversial No

Discovery

Year 2008
Method Radial Velocity
Facility La Silla Observatory
Telescope 3.6 m ESO Telescope

Size rank in cohort

Rank by radius

#510of 1771

top 28.7%

This planet

13.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth HD 60532 b Jupiter
Radius (R⊕)1.0013.8011.21
Mass (M⊕)1.00336.90317.83
Density (g/cm³)5.510.701.33
Surface Gravity (g)1.001.772.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Minimum mass (M sin i) 336.900 M⊕ Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD

HD 60532

HIP

HIP 36795

TIC

TIC 456871289

Gaia DR2

Gaia DR2 5619121248264726272

Gaia DR3

Gaia DR3 5619121248267202688

System

HD 60532

Percentile among Gas Giant cohort

Radius 13.800 R⊕ · percentile 70 / cohort 1771
Mass 336.900 M⊕ · percentile 37 / cohort 1747
Orbital period 201.90 d · percentile 57 / cohort 1533
Distance 25.97 pc · percentile 6 / cohort 1759
ESI 0.312 · percentile 61 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
201.900 days
Semi-major axis
0.7700 AU
Eccentricity
0.260
Inclination
°

Year Length

A year here lasts approximately 201.90 Earth days (55.3% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.7700 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.312

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Desort et al. 2008

Instrument

HARPS Spectrograph

Publication

2008-12

Observation locale

Ground

Host System: HD 60532

Spectral Class

F-type yellow-white

Effective Temperature

6,245 K — hotter than the Sun (5,778 K)

Estimated Age

2.80 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.570 R☉

Stellar Mass

1.500 M☉

Metallicity [Fe/H]

-0.26

Extended Stellar Properties

Surface gravity (log g)

3.800 dex

Stellar density

0.093 g/cm³

Systemic radial velocity

60.70 km/s

Rotational v·sin i

8.00 km/s

Metallicity ratio

[Fe/H]

Distance
25.97 parsec
Light-years 84.71 ly
V-band magnitude
4.44 mag
Voyager-speed travel 1,493,824 yr

Multi-band Host Photometry — 12 bands

2.04.94.93B4.44V4.31Gaia3.94TESS3.83Ic3.70J3.32H3.36K3.18W12.04W23.16W33.13W4

Astrometric Data

Parallax

38.477 mas

Total Proper Motion

61.213 mas/yr

PM Right Ascension

-39.84 mas/yr

PM Declination

46.48 mas/yr

Galactic Cartesian (pc)

x = -0.369 · y = 0.848 · z = -0.379

Equatorial (J2000)

RA 113.51307° · Dec -22.29587°

Galactic ℓ, b

237.498° · -1.190°

Ecliptic λ, β

120.463° · -43.280°

HTM-20 index

-68995216

Observation Record

Photometric series

1

RV measurements

1

Archive notes

1

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