Key parameters at a glance

A radius of 13.50 Earth radii
A mass of 541.26 Earth masses
Surface gravity around 2.97 g
An orbital period of 526.524 days
Semi-major axis 1.2800 AU
Distance from Earth 136.57 light-years
Earth Similarity Index 0.352
Travel time at Voyager 1 speed 2,408,418 years

HD 4113 b Planet Profile

Physical Specs

Radius

13.50 R⊕

Radius (Jupiter)

1.200 R♃

Mass

541.26 M⊕

Mass (Jupiter)

1.703 M♃

Density

1.21 g/cm³

Surface Gravity

2.97 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.352

HZ Position Unknown

Controversial No

Discovery

Year 2007

Method Radial Velocity

Facility La Silla Observatory

Telescope 1.2 m Leonhard Euler Telescope

Size rank in cohort

Rank by radius

#671of 1771

top 37.8%

This planet

13.50R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 45350 b 13.50 R⊕ HD 82943 b 13.50 R⊕ HD 27442 b 13.50 R⊕

Metric	Earth	HD 4113 b	Jupiter
Radius (R⊕)	1.00	13.50	11.21
Mass (M⊕)	1.00	541.26	317.83
Density (g/cm³)	5.51	1.21	1.33
Surface Gravity (g)	1.00	2.97	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	541.262 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 4113

HIP

HIP 3391

TIC

TIC 118586897

Gaia DR2

Gaia DR2 5000774703569900800

Gaia DR3

Gaia DR3 5000774703569900800

System

HD 4113

Percentile among Gas Giant cohort

Radius 13.500 R⊕ · percentile 59 / cohort 1771

Mass 541.262 M⊕ · percentile 51 / cohort 1747

Orbital period 526.52 d · percentile 68 / cohort 1533

Distance 41.87 pc · percentile 15 / cohort 1759

ESI 0.352 · percentile 72 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

526.524 days

Semi-major axis

1.2800 AU

Eccentricity

0.899

Inclination

— °

Year Length

A year here lasts about 1.44 Earth years on a highly eccentric trajectory at a mean orbital distance of 1.2800 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.352

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Tamuz et al. 2008

Instrument

CORALIE Spectrograph

Publication

2008-03

Observation locale

Ground

Discovery cohort

Planets confirmed in 2007 at La Silla Observatory (10 shown).

GJ 581 c · Sub-Neptune GJ 674 b · Sub-Neptune HD 219828 b · Neptune-like HD 70573 b · Gas Giant HD 221287 b · Gas Giant HD 171028 b · Gas Giant BD-13 2130 b · Gas Giant HD 156846 b · Gas Giant HD 190647 b · Gas Giant HD 100777 b · Gas Giant

Host System: HD 4113

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,688 K — cooler than the Sun (5,778 K)

Estimated Age

5.00 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.078 R☉

Stellar Mass

1.008 M☉

Metallicity [Fe/H]

0.20

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

1.104 g/cm³

Systemic radial velocity

4.87 km/s

Rotational v·sin i

2.32 km/s

Activity index (log R'HK)

-5.104

Metallicity ratio

[Fe/H]

Distance

41.87 parsec

Light-years 136.57 ly

V-band magnitude

7.88 mag

Voyager-speed travel 2,408,418 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

23.853 mas

Total Proper Motion

124.382 mas/yr

PM Right Ascension

49.34 mas/yr

PM Declination

-114.18 mas/yr

Galactic Cartesian (pc)

x = 0.774 · y = 0.148 · z = -0.615

Equatorial (J2000)

RA 10.80275° · Dec -37.98312°

Galactic ℓ, b

311.464° · -79.008°

Ecliptic λ, β

351.963° · -38.566°

HTM-20 index

-1847315811

Observation Record

Photometric series

Stellar spectra

Archive notes