Key parameters at a glance

A radius of 12.90 Earth radii
A mass of 1,589.00 Earth masses
Surface gravity around 9.55 g
Semi-major axis 55.7000 AU
Equilibrium temperature 1,000 K (727 °C)
Distance from Earth 281.24 light-years
Earth Similarity Index 0.172
Travel time at Voyager 1 speed 4,959,622 years

HD 95086 b Planet Profile

Physical Specs

Radius

12.90 R⊕

Radius (Jupiter)

1.150 R♃

Mass

1,589.00 M⊕

Mass (Jupiter)

5.000 M♃

Density

4.07 g/cm³

Surface Gravity

9.55 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.172

HZ Position Unknown

Controversial No

Discovery

Year 2013

Method Imaging

Facility Paranal Observatory

Telescope 8.2 m ESO VLT UT4 Yepun Telescope

Size rank in cohort

Rank by radius

#1011of 1771

top 57.0%

This planet

12.90R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 55696 b 12.90 R⊕ HD 24040 b 12.90 R⊕ BD-210397 c 12.90 R⊕

Metric	Earth	HD 95086 b	Jupiter
Radius (R⊕)	1.00	12.90	11.21
Mass (M⊕)	1.00	1,589.00	317.83
Density (g/cm³)	5.51	4.07	1.33
Surface Gravity (g)	1.00	9.55	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	1,589.000 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HD 95086

HIP

HIP 53524

TIC

TIC 399637637

Gaia DR2

Gaia DR2 5231963962676292224

Gaia DR3

Gaia DR3 5231963962676292224

System

HD 95086

Percentile among Gas Giant cohort

Radius 12.900 R⊕ · percentile 41 / cohort 1771

Mass 1,589.000 M⊕ · percentile 75 / cohort 1747

Distance 86.23 pc · percentile 32 / cohort 1759

ESI 0.172 · percentile 38 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

55.7000 AU

Eccentricity

—

Inclination

— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

1,000K

(727 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.172

0 = alien, 1 = Earth-identical

Insufficient insolation data — the dayside is scorched.

Discovery Paper

Primary reference

Rameau et al. 2013

Instrument

NACO Camera

Publication

2013-08

Observation locale

Ground

Discovery cohort

Planets confirmed in 2013 at Paranal Observatory (2 shown).

2MASS J01033563-5515561 AB b · Gas Giant DENIS-P J082303.1-491201 b · Gas Giant

Host System: HD 95086

Spectral Class

A-type white

Effective Temperature

7,595 K — hotter than the Sun (5,778 K)

Estimated Age

0.02 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.487 R☉

Stellar Mass

1.600 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.342 dex

Stellar density

0.759 g/cm³

Rotational v·sin i

17.14 km/s

Metallicity ratio

[Fe/H]

Distance

86.23 parsec

Light-years 281.24 ly

V-band magnitude

7.36 mag

Voyager-speed travel 4,959,622 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

11.568 mas

Total Proper Motion

43.052 mas/yr

PM Right Ascension

-41.14 mas/yr

PM Declination

12.70 mas/yr

Galactic Cartesian (pc)

x = -0.350 · y = 0.099 · z = -0.931

Equatorial (J2000)

RA 164.26210° · Dec -68.66729°

Galactic ℓ, b

292.803° · -8.075°

Ecliptic λ, β

218.644° · -63.364°

HTM-20 index

1350538651

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Radius 13.00 R⊕ · 134.5 ly

HR 8799 c

Gas Giant · A-type white

Radius 13.00 R⊕ · 134.5 ly

HR 8799 d

Gas Giant · A-type white

Radius 13.00 R⊕ · 134.5 ly

HR 8799 e

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Radius 13.11 R⊕ · 134.5 ly

WD 0806-661 b

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