Key parameters at a glance

A radius of 13.10 Earth radii
A mass of 994.80 Earth masses
Surface gravity around 5.80 g
An orbital period of 415.891 days
Semi-major axis 1.0910 AU
Distance from Earth 600.23 light-years
Earth Similarity Index 0.401
Travel time at Voyager 1 speed 10,585,023 years

HD 76920 b Planet Profile

Physical Specs

Radius

13.10 R⊕

Radius (Jupiter)

1.170 R♃

Mass

994.80 M⊕

Mass (Jupiter)

3.130 M♃

Density

2.43 g/cm³

Surface Gravity

5.80 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.401

HZ Position Unknown

Controversial No

Discovery

Year 2017

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

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 76920 b	Jupiter
Radius (R⊕)	1.00	13.10	11.21
Mass (M⊕)	1.00	994.80	317.83
Density (g/cm³)	5.51	2.43	1.33
Surface Gravity (g)	1.00	5.80	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	994.803 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 76920

HIP

HIP 43803

TIC

TIC 302372658

Gaia DR2

Gaia DR2 5224124307320401024

Gaia DR3

Gaia DR3 5224124307320401024

System

HD 76920

Percentile among Gas Giant cohort

Radius 13.100 R⊕ · percentile 46 / cohort 1771

Mass 994.803 M⊕ · percentile 66 / cohort 1747

Orbital period 415.89 d · percentile 65 / cohort 1533

Distance 184.03 pc · percentile 48 / cohort 1759

ESI 0.401 · percentile 86 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

415.891 days

Semi-major axis

1.0910 AU

Eccentricity

0.878

Inclination

— °

Year Length

A year here lasts about 1.14 Earth years on a highly eccentric trajectory at a mean orbital distance of 1.0910 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.401

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Wittenmyer et al. 2017

Instrument

Multiple Instruments

Publication

2017-12

Observation locale

Ground

Discovery cohort

Planets confirmed in 2017 at Multiple Observatories (12 shown).

GJ 625 b · Super-Earth TRAPPIST-1 e · Rocky Terrestrial TRAPPIST-1 f · Rocky Terrestrial TRAPPIST-1 g · Rocky Terrestrial TRAPPIST-1 h · Rocky Terrestrial HD 34445 e · Neptune-like BD+03 2562 b · Gas Giant HD 111591 b · Gas Giant HD 34445 d · Neptune-like MOA-2012-BLG-006L b · Gas Giant HD 34445 f · Neptune-like HD 40956 b · Gas Giant

Host System: HD 76920

Spectral Class

K-type orange

Effective Temperature

4,664 K — cooler than the Sun (5,778 K)

Estimated Age

5.20 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

8.330 R☉

Stellar Mass

1.000 M☉

Metallicity [Fe/H]

-0.19

Extended Stellar Properties

Surface gravity (log g)

2.710 dex

Stellar density

0.003 g/cm³

Systemic radial velocity

20.09 km/s

Rotational v·sin i

2.50 km/s

Metallicity ratio

[Fe/H]

Distance

184.03 parsec

Light-years 600.23 ly

V-band magnitude

7.83 mag

Voyager-speed travel 10,585,023 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

5.405 mas

Total Proper Motion

35.958 mas/yr

PM Right Ascension

25.28 mas/yr

PM Declination

25.57 mas/yr

Galactic Cartesian (pc)

x = -0.268 · y = 0.279 · z = -0.922

Equatorial (J2000)

RA 133.82035° · Dec -67.26536°

Galactic ℓ, b

282.952° · -14.100°

Ecliptic λ, β

202.533° · -73.159°

HTM-20 index

-151497031

Similar Worlds

HD 4732 c

Gas Giant · K-type orange

Radius 13.10 R⊕ · 178.7 ly

HD 37605 c

Gas Giant · K-type orange

Radius 13.10 R⊕ · 152.6 ly

HD 102843 b

Gas Giant · K-type orange

Radius 13.10 R⊕ · 204.7 ly

HD 142245 b

Gas Giant · K-type orange

Radius 13.10 R⊕ · 317.1 ly

HD 112570 b

Gas Giant · K-type orange

Radius 13.10 R⊕ · 330.0 ly

KOINTREAU-3 b

Gas Giant · K-type orange

Radius 13.10 R⊕ · 458.5 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Multiple Observatories Mission K-type orange Hosts