Confirmed Exoplanet Discovered 2005

AB Pic b

A gas giant orbiting the k-type orange AB Pic, located approximately 163.2 light-years from Earth.

Key parameters at a glance

  • A radius of 12.30 Earth radii
  • A mass of 4,290.50 Earth masses
  • Surface gravity around 28.36 g
  • Semi-major axis 260.0000 AU
  • Distance from Earth 163.23 light-years
  • Earth Similarity Index 0.342
  • Travel time at Voyager 1 speed 2,878,612 years

AB Pic b Planet Profile

Physical Specs

Radius
12.30 R⊕
Radius (Jupiter)
1.100 R♃
Mass
4,290.50 M⊕
Mass (Jupiter)
13.500 M♃
Density
12.70 g/cm³
Surface Gravity
28.36 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.342
HZ Position Unknown
Controversial No

Discovery

Year 2005
Method Imaging
Facility Paranal Observatory
Telescope 8.2 m ESO VLT UT4 Yepun Telescope

Size rank in cohort

Rank by radius

#1349of 1771

top 76.1%

This planet

12.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HAT-P-13 c 12.30 R⊕ HD 22781 b 12.30 R⊕ CHXR 73 b 12.30 R⊕
Metric Earth AB Pic b Jupiter
Radius (R⊕)1.0012.3011.21
Mass (M⊕)1.004,290.50317.83
Density (g/cm³)5.5112.701.33
Surface Gravity (g)1.0028.362.53
Insolation (S⊕)1.00—0.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 4,290.500 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

HD

HD 44627

HIP

HIP 30034

TIC

TIC 260351540

Gaia DR2

Gaia DR2 5495052596695570816

Gaia DR3

Gaia DR3 5495052596695570816

System

AB Pic

Percentile among Gas Giant cohort

Radius 12.300 R⊕ · percentile 22 / cohort 1771
Mass 4,290.500 M⊕ · percentile 92 / cohort 1747
Distance 50.05 pc · percentile 19 / cohort 1759
ESI 0.342 · percentile 69 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
— days
Semi-major axis
260.0000 AU
Eccentricity
—
Inclination
— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

—

 

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.342

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Chauvin et al. 2005

Instrument

NACO Camera

Publication

2005-08

Observation locale

Ground

Host System: AB Pic

Spectral Class

K-type orange

Effective Temperature

5,285 K — cooler than the Sun (5,778 K)

Estimated Age

0.03 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.999 R☉

Stellar Mass

0.900 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

1.120 g/cm³

Systemic radial velocity

22.20 km/s

Rotational v·sin i

10.35 km/s

Metallicity ratio

[Fe/H]

Distance
50.05 parsec
Light-years 163.23 ly
V-band magnitude
9.13 mag
Voyager-speed travel 2,878,612 yr

Multi-band Host Photometry — 11 bands

6.810.110.15B9.13V8.84Gaia8.28TESS7.58J7.09H6.98K6.90W16.89W26.86W36.83W4

Astrometric Data

Parallax

19.952 mas

Total Proper Motion

47.298 mas/yr

PM Right Ascension

14.34 mas/yr

PM Declination

45.07 mas/yr

Galactic Cartesian (pc)

x = -0.044 · y = 0.527 · z = -0.849

Equatorial (J2000)

RA 94.80392° · Dec -58.05412°

Galactic ℓ, b

266.943° · -26.931°

Ecliptic λ, β

106.856° · -81.212°

HTM-20 index

308637352

Similar Worlds

SR 12 AB c

Gas Giant · K-type orange

Radius 12.30 R⊕ · 366.3 ly

2MASS J22362452+4751425 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 226.9 ly

HD 158996 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 925.2 ly

11 UMi b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 408.7 ly

HD 22781 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 106.3 ly

HD 4760 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 1,754.3 ly

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