Key parameters at a glance

A radius of 13.00 Earth radii
A mass of 1,334.88 Earth masses
Surface gravity around 7.90 g
An orbital period of 582.000 days
Semi-major axis 1.7000 AU
Distance from Earth 763.29 light-years
Earth Similarity Index 0.419
Travel time at Voyager 1 speed 13,460,673 years

HD 174205 b Planet Profile

Physical Specs

Radius

13.00 R⊕

Radius (Jupiter)

1.160 R♃

Mass

1,334.88 M⊕

Mass (Jupiter)

4.200 M♃

Density

3.34 g/cm³

Surface Gravity

7.90 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.419

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Radial Velocity

Facility Bohyunsan Optical Astronomical Observatory

Telescope 1.8 m Telescope

Size rank in cohort

Rank by radius

#960of 1771

top 54.2%

This planet

13.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HIP 14810 b 13.00 R⊕ HD 47186 c 13.00 R⊕ WASP-107 c 13.00 R⊕

Metric	Earth	HD 174205 b	Jupiter
Radius (R⊕)	1.00	13.00	11.21
Mass (M⊕)	1.00	1,334.88	317.83
Density (g/cm³)	5.51	3.34	1.33
Surface Gravity (g)	1.00	7.90	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,334.879 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 174205

TIC

TIC 229752137

Gaia DR2

Gaia DR2 2265446887586501120

Gaia DR3

Gaia DR3 2265446887586501120

System

HD 174205

Percentile among Gas Giant cohort

Radius 13.000 R⊕ · percentile 43 / cohort 1771

Mass 1,334.879 M⊕ · percentile 72 / cohort 1747

Orbital period 582.00 d · percentile 70 / cohort 1533

Distance 234.03 pc · percentile 54 / cohort 1759

ESI 0.419 · percentile 91 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

582.000 days

Semi-major axis

1.7000 AU

Eccentricity

0.400

Inclination

— °

Year Length

A year here lasts about 1.59 Earth years on a highly eccentric trajectory at a mean orbital distance of 1.7000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.419

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Jeong et al. 2022

Instrument

BOES Echelle Spectrograph

Publication

2022-06

Observation locale

Ground

Discovery cohort

Planets confirmed in 2022 at Bohyunsan Optical Astronomical Observatory (2 shown).

HD 19615 b · Gas Giant HD 150010 b · Gas Giant

Host System: HD 174205

Spectral Class

K-type orange

Effective Temperature

4,308 K — cooler than the Sun (5,778 K)

Estimated Age

1.70 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

26.600 R☉

Stellar Mass

1.800 M☉

Metallicity [Fe/H]

-0.28

Extended Stellar Properties

Surface gravity (log g)

1.800 dex

Systemic radial velocity

-5.41 km/s

Rotational v·sin i

1.60 km/s

Metallicity ratio

[Fe/H]

Distance

234.03 parsec

Light-years 763.29 ly

V-band magnitude

6.28 mag

Voyager-speed travel 13,460,673 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

4.244 mas

Total Proper Motion

7.534 mas/yr

PM Right Ascension

4.99 mas/yr

PM Declination

-5.65 mas/yr

Galactic Cartesian (pc)

x = 0.062 · y = -0.323 · z = 0.944

Equatorial (J2000)

RA 280.79320° · Dec 70.79282°

Galactic ℓ, b

101.441° · 26.178°

Ecliptic λ, β

52.096° · 84.244°

HTM-20 index

1849973861

Similar Worlds

WASP-107 c

Gas Giant · K-type orange

Radius 13.00 R⊕ · 211.2 ly

HD 1605 c

Gas Giant · K-type orange

Radius 13.00 R⊕ · 289.6 ly

HD 86950 b

Gas Giant · K-type orange

Radius 13.00 R⊕ · 684.4 ly

CI Tau c

Gas Giant · K-type orange

Radius 13.00 R⊕ · 515.3 ly

HD 95872 b

Gas Giant · K-type orange

Radius 13.00 R⊕ · 235.5 ly

MOA-2008-BLG-379L b

Gas Giant · K-type orange

Radius 13.00 R⊕ · 10,763.1 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Bohyunsan Optical Astronomical Observatory Mission K-type orange Hosts