Key parameters at a glance

A radius of 13.30 Earth radii
A mass of 715.11 Earth masses
Surface gravity around 4.04 g
An orbital period of 1,129.000 days
Semi-major axis 2.0000 AU
Distance from Earth 159.52 light-years
Earth Similarity Index 0.375
Travel time at Voyager 1 speed 2,813,198 years

HD 108341 b Planet Profile

Physical Specs

Radius

13.30 R⊕

Radius (Jupiter)

1.190 R♃

Mass

715.11 M⊕

Mass (Jupiter)

2.250 M♃

Density

1.67 g/cm³

Surface Gravity

4.04 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.375

HZ Position Unknown

Controversial No

Discovery

Year 2014

Method Radial Velocity

Facility La Silla Observatory

Telescope 3.6 m ESO Telescope

Size rank in cohort

Rank by radius

#793of 1771

top 44.7%

This planet

13.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 12661 b 13.30 R⊕ HD 129445 b 13.30 R⊕ GJ 876 b 13.30 R⊕

Metric	Earth	HD 108341 b	Jupiter
Radius (R⊕)	1.00	13.30	11.21
Mass (M⊕)	1.00	715.11	317.83
Density (g/cm³)	5.51	1.67	1.33
Surface Gravity (g)	1.00	4.04	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	715.114 M⊕	Direct mass measurement (not derived).
Minimum mass (M sin i)	1,112.400 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 108341

HIP

HIP 60788

TIC

TIC 286896213

Gaia DR2

Gaia DR2 5842782219960409728

Gaia DR3

Gaia DR3 5842782219960409728

System

HD 108341

Percentile among Gas Giant cohort

Radius 13.300 R⊕ · percentile 53 / cohort 1771

Mass 715.114 M⊕ · percentile 58 / cohort 1747

Orbital period 1,129.00 d · percentile 79 / cohort 1533

Distance 48.91 pc · percentile 19 / cohort 1759

ESI 0.375 · percentile 78 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1,129.000 days

Semi-major axis

2.0000 AU

Eccentricity

0.850

Inclination

65.00 °

Year Length

A year here lasts about 3.09 Earth years on a highly eccentric trajectory at a mean orbital distance of 2.0000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.375

0 = alien, 1 = Earth-identical

Detection Signatures

Radial velocity

Stellar wobble has been measured spectroscopically.

Astrometry

Positional wobble of the host star was measured.

Discovery Paper

Primary reference

Moutou et al. 2015

Instrument

HARPS Spectrograph

Publication

2015-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2014 at La Silla Observatory (4 shown).

BD-11 4672 b · Gas Giant HD 103720 b · Gas Giant HD 564 b · Gas Giant HD 30669 b · Gas Giant

Host System: HD 108341

Spectral Class

K-type orange

Effective Temperature

5,122 K — cooler than the Sun (5,778 K)

Estimated Age

4.90 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.790 R☉

Stellar Mass

0.843 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

2.567 g/cm³

Systemic radial velocity

56.70 km/s

Rotational v·sin i

2.00 km/s

Metallicity ratio

[Fe/H]

Distance

48.91 parsec

Light-years 159.52 ly

V-band magnitude

9.38 mag

Voyager-speed travel 2,813,198 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

20.417 mas

Total Proper Motion

166.200 mas/yr

PM Right Ascension

-120.76 mas/yr

PM Declination

114.19 mas/yr

Galactic Cartesian (pc)

x = -0.316 · y = -0.038 · z = -0.948

Equatorial (J2000)

RA 186.87917° · Dec -71.42249°

Galactic ℓ, b

301.008° · -8.640°

Ecliptic λ, β

232.487° · -58.704°

HTM-20 index

-97153436

Similar Worlds

TOI-4010 e

Gas Giant · K-type orange

Radius 13.30 R⊕ · 578.9 ly

HD 94890 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 201.2 ly

NGC 2682 Sand 978 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 2,680.7 ly

HD 12661 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 123.4 ly

HD 108863 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 537.3 ly

Kepler-432 c

Gas Giant · K-type orange

Radius 13.30 R⊕ · 2,765.9 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries La Silla Observatory Mission K-type orange Hosts