Key parameters at a glance

A radius of 12.20 Earth radii
A mass of 5,288.69 Earth masses
Surface gravity around 35.53 g
An orbital period of 672.100 days
Semi-major axis 1.6000 AU
Distance from Earth 1,058.51 light-years
Earth Similarity Index 0.315
Travel time at Voyager 1 speed 18,666,764 years

HD 220074 b Planet Profile

Physical Specs

Radius

12.20 R⊕

Radius (Jupiter)

1.090 R♃

Mass

5,288.69 M⊕

Mass (Jupiter)

16.640 M♃

Density

16.00 g/cm³

Surface Gravity

35.53 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.315

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

#1410of 1771

top 79.6%

This planet

12.20R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

FU Tau b 12.20 R⊕ HD 168443 c 12.20 R⊕ HIP 5158 c 12.20 R⊕

Metric	Earth	HD 220074 b	Jupiter
Radius (R⊕)	1.00	12.20	11.21
Mass (M⊕)	1.00	5,288.69	317.83
Density (g/cm³)	5.51	16.00	1.33
Surface Gravity (g)	1.00	35.53	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	5,288.691 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 220074

HIP

HIP 115218

TIC

TIC 269237357

Gaia DR2

Gaia DR2 2014988549785194752

Gaia DR3

Gaia DR3 2014988549785194752

System

HD 220074

Percentile among Gas Giant cohort

Radius 12.200 R⊕ · percentile 19 / cohort 1771

Mass 5,288.691 M⊕ · percentile 95 / cohort 1747

Orbital period 672.10 d · percentile 72 / cohort 1533

Distance 324.54 pc · percentile 63 / cohort 1759

ESI 0.315 · percentile 62 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

672.100 days

Semi-major axis

1.6000 AU

Eccentricity

0.140

Inclination

— °

Year Length

A year here lasts about 1.84 Earth years on a mildly elliptical path at a mean orbital distance of 1.6000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.315

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Lee et al. 2013

Instrument

BOES Echelle Spectrograph

Publication

2013-01

Observation locale

Ground

Discovery cohort

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

eps CrB b · Gas Giant HD 66141 b · Gas Giant HD 208527 b · Gas Giant

Host System: HD 220074

Spectral Class

M-type red dwarf

Effective Temperature

3,787 K — cooler than the Sun (5,778 K)

Estimated Age

4.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

54.920 R☉

Stellar Mass

2.200 M☉

Metallicity [Fe/H]

-0.25

Extended Stellar Properties

Surface gravity (log g)

1.300 dex

Systemic radial velocity

-36.89 km/s

Rotational v·sin i

3.00 km/s

Metallicity ratio

[Fe/H]

Distance

324.54 parsec

Light-years 1,058.51 ly

V-band magnitude

6.41 mag

Voyager-speed travel 18,666,764 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

3.054 mas

Total Proper Motion

9.448 mas/yr

PM Right Ascension

7.81 mas/yr

PM Declination

-5.32 mas/yr

Galactic Cartesian (pc)

x = 0.463 · y = -0.081 · z = 0.883

Equatorial (J2000)

RA 350.05998° · Dec 61.97011°

Galactic ℓ, b

112.438° · 0.971°

Ecliptic λ, β

30.866° · 57.366°

HTM-20 index

816547487

Similar Worlds

ROXs 12 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 445.7 ly

HD 112300 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 202.5 ly

FU Tau b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 435.4 ly

2MASS J03590986+2009361 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 383.0 ly

KOINTREAU-4 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 474.3 ly

USco1621 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 449.8 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Bohyunsan Optical Astronomical Observatory Mission M-type red dwarf Hosts