Key parameters at a glance

A radius of 12.80 Earth radii
A mass of 1,906.90 Earth masses
Surface gravity around 11.64 g
An orbital period of 480.500 days
Semi-major axis 1.2000 AU
Distance from Earth 222.28 light-years
Earth Similarity Index 0.438
Travel time at Voyager 1 speed 3,919,877 years

HD 66141 b Planet Profile

Physical Specs

Radius

12.80 R⊕

Radius (Jupiter)

1.140 R♃

Mass

1,906.90 M⊕

Mass (Jupiter)

6.000 M♃

Density

5.00 g/cm³

Surface Gravity

11.64 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.438

HZ Position Unknown

Controversial No

Discovery

Year 2012

Method Radial Velocity

Facility Bohyunsan Optical Astronomical Observatory

Telescope 1.8 m 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 29985 b 12.80 R⊕ HD 148164 c 12.80 R⊕

Metric	Earth	HD 66141 b	Jupiter
Radius (R⊕)	1.00	12.80	11.21
Mass (M⊕)	1.00	1,906.90	317.83
Density (g/cm³)	5.51	5.00	1.33
Surface Gravity (g)	1.00	11.64	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,906.900 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 66141

HIP

HIP 39311

TIC

TIC 452867458

Gaia DR2

Gaia DR2 3087964941887693056

Gaia DR3

Gaia DR3 3087964941891149952

System

HD 66141

Percentile among Gas Giant cohort

Radius 12.800 R⊕ · percentile 37 / cohort 1771

Mass 1,906.900 M⊕ · percentile 79 / cohort 1747

Orbital period 480.50 d · percentile 67 / cohort 1533

Distance 68.15 pc · percentile 28 / cohort 1759

ESI 0.438 · percentile 97 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

480.500 days

Semi-major axis

1.2000 AU

Eccentricity

0.070

Inclination

— °

Year Length

A year here lasts about 1.32 Earth years on a nearly circular orbit at a mean orbital distance of 1.2000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.438

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Lee et al. 2012

Instrument

BOES Echelle Spectrograph

Publication

2012-12

Observation locale

Ground

Discovery cohort

Planets confirmed in 2012 at Bohyunsan Optical Astronomical Observatory (3 shown).

eps CrB b · Gas Giant HD 208527 b · Gas Giant HD 220074 b · Gas Giant

Host System: HD 66141

Spectral Class

K-type orange

Effective Temperature

4,323 K — cooler than the Sun (5,778 K)

Estimated Age

6.84 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

21.400 R☉

Stellar Mass

1.100 M☉

Metallicity [Fe/H]

-0.32

Extended Stellar Properties

Surface gravity (log g)

1.780 dex

Systemic radial velocity

71.57 km/s

Rotational v·sin i

4.70 km/s

Metallicity ratio

[Fe/H]

Distance

68.15 parsec

Light-years 222.28 ly

V-band magnitude

4.38 mag

Voyager-speed travel 3,919,877 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

14.670 mas

Total Proper Motion

108.619 mas/yr

PM Right Ascension

-26.52 mas/yr

PM Declination

105.33 mas/yr

Galactic Cartesian (pc)

x = -0.508 · y = 0.860 · z = 0.041

Equatorial (J2000)

RA 120.56628° · Dec 2.33503°

Galactic ℓ, b

219.067° · 16.800°

Ecliptic λ, β

122.239° · -17.748°

HTM-20 index

-167361284

Similar Worlds

HD 99706 c

Gas Giant · K-type orange

Radius 12.80 R⊕ · 478.1 ly

HD 135872 b

Gas Giant · K-type orange

Radius 12.80 R⊕ · 268.8 ly

WASP-132 d

Gas Giant · K-type orange

Radius 12.80 R⊕ · 400.9 ly

gam Lib c

Gas Giant · K-type orange

Radius 12.80 R⊕ · 154.6 ly

HD 240210 b

Gas Giant · K-type orange

Radius 12.80 R⊕ · 1,214.6 ly

WISPIT 1 c

Gas Giant · K-type orange

Radius 12.80 R⊕ · 750.2 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Bohyunsan Optical Astronomical Observatory Mission K-type orange Hosts