Key parameters at a glance

A radius of 13.10 Earth radii
A mass of 1,096.51 Earth masses
Surface gravity around 6.39 g
An orbital period of 1,785.000 days
Semi-major axis 3.3300 AU
Distance from Earth 446.69 light-years
Earth Similarity Index 0.406
Travel time at Voyager 1 speed 7,877,439 years

1 sibling around HD 95089

HD 95089 c 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 95089 b	Gas Giant	13.70	400.47	464.400	—	2009
HD 95089 c this	Gas Giant	13.10	1,096.51	1,785.000	—	2018

HD 95089 c Planet Profile

Physical Specs

Radius

13.10 R⊕

Radius (Jupiter)

1.170 R♃

Mass

1,096.51 M⊕

Mass (Jupiter)

3.450 M♃

Density

2.68 g/cm³

Surface Gravity

6.39 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.406

HZ Position Unknown

Controversial No

Discovery

Year 2018

Method Radial Velocity

Facility W. M. Keck Observatory

Telescope 10 m Keck I Telescope

Size rank in cohort

Rank by radius

#910of 1771

top 51.3%

This planet

13.10R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

GJ 3021 b 13.10 R⊕ HD 221287 b 13.10 R⊕ HD 37605 c 13.10 R⊕

Metric	Earth	HD 95089 c	Jupiter
Radius (R⊕)	1.00	13.10	11.21
Mass (M⊕)	1.00	1,096.51	317.83
Density (g/cm³)	5.51	2.68	1.33
Surface Gravity (g)	1.00	6.39	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,096.514 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 95089

HIP

HIP 53666

TIC

TIC 345078350

Gaia DR2

Gaia DR2 3808410933735817472

Gaia DR3

Gaia DR3 3808410933735817472

System

HD 95089

Percentile among Gas Giant cohort

Radius 13.100 R⊕ · percentile 46 / cohort 1771

Mass 1,096.514 M⊕ · percentile 69 / cohort 1747

Orbital period 1,785.00 d · percentile 83 / cohort 1533

Distance 136.96 pc · percentile 42 / cohort 1759

ESI 0.406 · percentile 87 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1,785.000 days

Semi-major axis

3.3300 AU

Eccentricity

0.284

Inclination

— °

Year Length

A year here lasts about 4.89 Earth years on a mildly elliptical path at a mean orbital distance of 3.3300 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.406

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Bryan et al. 2016

Instrument

HIRES Spectrometer

Publication

2016-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2018 at W. M. Keck Observatory (12 shown).

HD 75784 c · Gas Giant HD 99706 c · Gas Giant HD 148164 c · Gas Giant HD 55696 b · Gas Giant HD 13167 b · Gas Giant HD 18015 b · Gas Giant HAT-P-11 c · Gas Giant HD 156279 c · Gas Giant HD 98736 b · Gas Giant HD 180053 b · Gas Giant HD 114783 c · Gas Giant HD 72490 b · Gas Giant

Host System: HD 95089

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

4,918 K — cooler than the Sun (5,778 K)

Estimated Age

2.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

5.080 R☉

Stellar Mass

1.540 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

3.240 dex

Systemic radial velocity

8.44 km/s

Rotational v·sin i

1.71 km/s

Metallicity ratio

[Fe/H]

Distance

136.96 parsec

Light-years 446.69 ly

V-band magnitude

7.92 mag

Voyager-speed travel 7,877,439 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

7.275 mas

Total Proper Motion

59.740 mas/yr

PM Right Ascension

-35.73 mas/yr

PM Declination

-47.88 mas/yr

Galactic Cartesian (pc)

x = -0.964 · y = 0.264 · z = 0.030

Equatorial (J2000)

RA 164.69875° · Dec 1.72901°

Galactic ℓ, b

251.413° · 52.943°

Ecliptic λ, β

165.236° · -4.430°

HTM-20 index

-1736487045

Observation Record

Photometric series

RV measurements

Stellar spectra

Archive notes