Key parameters at a glance

A radius of 13.50 Earth radii
A mass of 495.81 Earth masses
Surface gravity around 2.72 g
An orbital period of 871.000 days
Semi-major axis 1.8300 AU
Distance from Earth 297.30 light-years
Earth Similarity Index 0.346
Travel time at Voyager 1 speed 5,242,948 years

HD 222076 b Planet Profile

Physical Specs

Radius

13.50 R⊕

Radius (Jupiter)

1.210 R♃

Mass

495.81 M⊕

Mass (Jupiter)

1.560 M♃

Density

1.11 g/cm³

Surface Gravity

2.72 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.346

HZ Position Unknown

Controversial No

Discovery

Year 2016

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

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 222076 b	Jupiter
Radius (R⊕)	1.00	13.50	11.21
Mass (M⊕)	1.00	495.81	317.83
Density (g/cm³)	5.51	1.11	1.33
Surface Gravity (g)	1.00	2.72	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	495.815 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 222076

HIP

HIP 116630

TIC

TIC 325178933

Gaia DR2

Gaia DR2 6386468454774591744

Gaia DR3

Gaia DR3 6386468454774591744

System

HD 222076

Percentile among Gas Giant cohort

Radius 13.500 R⊕ · percentile 59 / cohort 1771

Mass 495.815 M⊕ · percentile 48 / cohort 1747

Orbital period 871.00 d · percentile 75 / cohort 1533

Distance 91.15 pc · percentile 33 / cohort 1759

ESI 0.346 · percentile 70 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

871.000 days

Semi-major axis

1.8300 AU

Eccentricity

0.080

Inclination

— °

Year Length

A year here lasts about 2.38 Earth years on a nearly circular orbit at a mean orbital distance of 1.8300 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.346

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Wittenmyer et al. 2017

Instrument

Multiple Instruments

Publication

2017-02

Observation locale

Ground

Discovery cohort

Planets confirmed in 2016 at Multiple Observatories (12 shown).

HD 42618 b · Sub-Neptune HD 164922 c · Sub-Neptune HD 224538 b · Gas Giant HD 30177 c · Gas Giant Kepler-56 d · Gas Giant HD 72892 b · Gas Giant HD 147873 b · Gas Giant HIP 8541 b · Gas Giant HD 68402 b · Gas Giant HD 86950 b · Gas Giant HD 165155 b · Gas Giant rho CrB c · Neptune-like

Host System: HD 222076

Spectral Class

K-type orange

Effective Temperature

4,806 K — cooler than the Sun (5,778 K)

Estimated Age

4.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

4.100 R☉

Stellar Mass

1.070 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

3.310 dex

Systemic radial velocity

25.67 km/s

Rotational v·sin i

3.20 km/s

Metallicity ratio

[Fe/H]

Distance

91.15 parsec

Light-years 297.30 ly

V-band magnitude

7.47 mag

Voyager-speed travel 5,242,948 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

10.942 mas

Total Proper Motion

88.838 mas/yr

PM Right Ascension

-85.08 mas/yr

PM Declination

25.57 mas/yr

Galactic Cartesian (pc)

x = 0.326 · y = -0.031 · z = -0.945

Equatorial (J2000)

RA 354.53198° · Dec -70.90325°

Galactic ℓ, b

311.300° · -45.015°

Ecliptic λ, β

308.835° · -58.714°

HTM-20 index

-45613559

Similar Worlds

Kepler-46 c

Gas Giant · K-type orange

Radius 13.50 R⊕ · 2,534.4 ly

HD 128311 b

Gas Giant · K-type orange

Radius 13.50 R⊕ · 53.3 ly

BD+48 740 b

Gas Giant · K-type orange

Radius 13.50 R⊕ · 2,174.1 ly

HD 81688 b

Gas Giant · K-type orange

Radius 13.50 R⊕ · 279.6 ly

HD 47366 c

Gas Giant · K-type orange

Radius 13.50 R⊕ · 275.1 ly

HD 27442 b

Gas Giant · K-type orange

Radius 13.50 R⊕ · 59.6 ly

Explore Related Categories

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