Key parameters at a glance

A radius of 12.80 Earth radii
A mass of 1,640.00 Earth masses
Surface gravity around 10.01 g
An orbital period of 5,062.000 days
Semi-major axis 6.1500 AU
Distance from Earth 251.78 light-years
Earth Similarity Index 0.433
Travel time at Voyager 1 speed 4,440,192 years

1 sibling around HD 148164

HD 148164 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 148164 b	Gas Giant	13.70	390.93	328.550	—	2018
HD 148164 c this	Gas Giant	12.80	1,640.00	5,062.000	—	2018

HD 148164 c Planet Profile

Physical Specs

Radius

12.80 R⊕

Radius (Jupiter)

1.150 R♃

Mass

1,640.00 M⊕

Mass (Jupiter)

5.160 M♃

Density

4.30 g/cm³

Surface Gravity

10.01 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.433

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

#1063of 1771

top 60.0%

This planet

12.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 240210 b 12.80 R⊕ HD 70573 b 12.80 R⊕ HD 29985 b 12.80 R⊕

Metric	Earth	HD 148164 c	Jupiter
Radius (R⊕)	1.00	12.80	11.21
Mass (M⊕)	1.00	1,640.00	317.83
Density (g/cm³)	5.51	4.30	1.33
Surface Gravity (g)	1.00	10.01	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,640.003 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 148164

HIP

HIP 80484

TIC

TIC 323319664

Gaia DR2

Gaia DR2 4459907547841472128

Gaia DR3

Gaia DR3 4459907547841472128

System

HD 148164

Percentile among Gas Giant cohort

Radius 12.800 R⊕ · percentile 37 / cohort 1771

Mass 1,640.003 M⊕ · percentile 76 / cohort 1747

Orbital period 5,062.00 d · percentile 92 / cohort 1533

Distance 77.20 pc · percentile 30 / cohort 1759

ESI 0.433 · percentile 95 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

5,062.000 days

Semi-major axis

6.1500 AU

Eccentricity

0.125

Inclination

— °

Year Length

A year here lasts about 13.86 Earth years on a mildly elliptical path at a mean orbital distance of 6.1500 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.433

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Ment et al. 2018

Instrument

HIRES Spectrometer

Publication

2018-11

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 55696 b · Gas Giant HD 95089 c · 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 148164

Spectral Class

F-type yellow-white

Effective Temperature

6,032 K — hotter than the Sun (5,778 K)

Estimated Age

2.41 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.340 R☉

Stellar Mass

1.210 M☉

Metallicity [Fe/H]

0.24

Extended Stellar Properties

Surface gravity (log g)

4.158 dex

Stellar density

0.507 g/cm³

Systemic radial velocity

-64.63 km/s

Rotational v·sin i

4.00 km/s

Metallicity ratio

[Fe/H]

Distance

77.20 parsec

Light-years 251.78 ly

V-band magnitude

8.23 mag

Voyager-speed travel 4,440,192 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

12.925 mas

Total Proper Motion

88.524 mas/yr

PM Right Ascension

-88.51 mas/yr

PM Declination

1.57 mas/yr

Galactic Cartesian (pc)

x = -0.391 · y = -0.897 · z = 0.207

Equatorial (J2000)

RA 246.43517° · Dec 11.91907°

Galactic ℓ, b

27.051° · 37.678°

Ecliptic λ, β

242.157° · 33.109°

HTM-20 index

152517994