Key parameters at a glance

A radius of 13.20 Earth radii
A mass of 845.75 Earth masses
Surface gravity around 4.85 g
An orbital period of 2,918.920 days
Semi-major axis 4.1870 AU
Distance from Earth 286.65 light-years
Earth Similarity Index 0.388
Travel time at Voyager 1 speed 5,055,153 years

HD 152079 b Planet Profile

Physical Specs

Radius

13.20 R⊕

Radius (Jupiter)

1.180 R♃

Mass

845.75 M⊕

Mass (Jupiter)

2.661 M♃

Density

2.02 g/cm³

Surface Gravity

4.85 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.388

HZ Position Unknown

Controversial No

Discovery

Year 2009

Method Radial Velocity

Facility Las Campanas Observatory

Telescope 6.5 m Magellan II Clay Telescope

Size rank in cohort

Rank by radius

#847of 1771

top 47.8%

This planet

13.20R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 12661 c 13.20 R⊕ HD 37605 b 13.20 R⊕ MOA-2009-BLG-387L b 13.20 R⊕

Metric	Earth	HD 152079 b	Jupiter
Radius (R⊕)	1.00	13.20	11.21
Mass (M⊕)	1.00	845.75	317.83
Density (g/cm³)	5.51	2.02	1.33
Surface Gravity (g)	1.00	4.85	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	845.746 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 152079

HIP

HIP 82632

TIC

TIC 246835467

Gaia DR2

Gaia DR2 5939949051801737472

Gaia DR3

Gaia DR3 5939949051801737472

System

HD 152079

Percentile among Gas Giant cohort

Radius 13.200 R⊕ · percentile 49 / cohort 1771

Mass 845.746 M⊕ · percentile 63 / cohort 1747

Orbital period 2,918.92 d · percentile 88 / cohort 1533

Distance 87.89 pc · percentile 32 / cohort 1759

ESI 0.388 · percentile 82 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

2,918.920 days

Semi-major axis

4.1870 AU

Eccentricity

0.532

Inclination

— °

Year Length

A year here lasts about 7.99 Earth years on a highly eccentric trajectory at a mean orbital distance of 4.1870 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.388

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Arriagada et al. 2010

Instrument

MIKE Spectrograph

Publication

2010-03

Observation locale

Ground

Discovery cohort

Planets confirmed in 2009 at Las Campanas Observatory (4 shown).

HD 129445 b · Gas Giant HD 164604 b · Gas Giant HD 175167 b · Gas Giant HD 86226 b · Gas Giant

Host System: HD 152079

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,907 K — hotter than the Sun (5,778 K)

Estimated Age

1.62 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.128 R☉

Stellar Mass

1.147 M☉

Metallicity [Fe/H]

0.29

Extended Stellar Properties

Surface gravity (log g)

4.365 dex

Stellar density

0.891 g/cm³

Systemic radial velocity

-21.16 km/s

Rotational v·sin i

1.80 km/s

Rotation period

31.00 days

Metallicity ratio

[Fe/H]

Distance

87.89 parsec

Light-years 286.65 ly

V-band magnitude

9.18 mag

Voyager-speed travel 5,055,153 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

11.349 mas

Total Proper Motion

142.291 mas/yr

PM Right Ascension

-107.28 mas/yr

PM Declination

-93.48 mas/yr

Galactic Cartesian (pc)

x = -0.198 · y = -0.662 · z = -0.723

Equatorial (J2000)

RA 253.37323° · Dec -46.33336°

Galactic ℓ, b

339.892° · -1.569°

Ecliptic λ, β

257.545° · -23.610°

HTM-20 index

-1108517848