Key parameters at a glance

A radius of 12.60 Earth radii
A mass of 2,701.54 Earth masses
Surface gravity around 17.02 g
An orbital period of 402.000 days
Semi-major axis 1.1000 AU
Distance from Earth 864.82 light-years
Earth Similarity Index 0.406
Travel time at Voyager 1 speed 15,251,081 years

HD 19615 b Planet Profile

Physical Specs

Radius

12.60 R⊕

Radius (Jupiter)

1.120 R♃

Mass

2,701.54 M⊕

Mass (Jupiter)

8.500 M♃

Density

7.42 g/cm³

Surface Gravity

17.02 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.406

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

#1179of 1771

top 66.5%

This planet

12.60R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Kepler-419 c 12.60 R⊕ 2MASS J04414489+2301513 b 12.60 R⊕ HD 47536 b 12.60 R⊕

Metric	Earth	HD 19615 b	Jupiter
Radius (R⊕)	1.00	12.60	11.21
Mass (M⊕)	1.00	2,701.54	317.83
Density (g/cm³)	5.51	7.42	1.33
Surface Gravity (g)	1.00	17.02	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	2,701.541 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 19615

TIC

TIC 289383510

Gaia DR2

Gaia DR2 547375547309768064

Gaia DR3

Gaia DR3 547375547309768064

System

HD 19615

Percentile among Gas Giant cohort

Radius 12.600 R⊕ · percentile 31 / cohort 1771

Mass 2,701.541 M⊕ · percentile 85 / cohort 1747

Orbital period 402.00 d · percentile 64 / cohort 1533

Distance 265.16 pc · percentile 57 / cohort 1759

ESI 0.406 · percentile 87 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

402.000 days

Semi-major axis

1.1000 AU

Eccentricity

0.200

Inclination

— °

Year Length

A year here lasts about 1.10 Earth years on a mildly elliptical path at a mean orbital distance of 1.1000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.406

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 174205 b · Gas Giant HD 150010 b · Gas Giant

Host System: HD 19615

Spectral Class

K-type orange

Effective Temperature

4,263 K — cooler than the Sun (5,778 K)

Estimated Age

6.70 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

32.300 R☉

Stellar Mass

1.100 M☉

Metallicity [Fe/H]

-0.31

Extended Stellar Properties

Surface gravity (log g)

1.400 dex

Systemic radial velocity

-35.21 km/s

Rotational v·sin i

2.60 km/s

Metallicity ratio

[Fe/H]

Distance

265.16 parsec

Light-years 864.82 ly

V-band magnitude

6.56 mag

Voyager-speed travel 15,251,081 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

3.743 mas

Total Proper Motion

30.856 mas/yr

PM Right Ascension

-6.79 mas/yr

PM Declination

-30.10 mas/yr

Galactic Cartesian (pc)

x = 0.183 · y = 0.209 · z = 0.961

Equatorial (J2000)

RA 48.78133° · Dec 73.86802°

Galactic ℓ, b

132.593° · 13.755°

Ecliptic λ, β

72.301° · 52.960°

HTM-20 index

240944691

Similar Worlds

4 UMa b

Gas Giant · K-type orange

Radius 12.60 R⊕ · 239.6 ly

HD 47536 b

Gas Giant · K-type orange

Radius 12.60 R⊕ · 399.7 ly

HIP 8541 b

Gas Giant · K-type orange

Radius 12.60 R⊕ · 505.9 ly

HIP 35965 b

Gas Giant · K-type orange

Radius 12.60 R⊕ · 163.6 ly

HD 203387 c

Gas Giant · K-type orange

Radius 12.60 R⊕ · 201.4 ly

HD 102329 b

Gas Giant · K-type orange

Radius 12.60 R⊕ · 708.1 ly

Explore Related Categories

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