Key parameters at a glance

A radius of 12.20 Earth radii
A mass of 5,031.22 Earth masses
Surface gravity around 33.80 g
An orbital period of 466.630 days
Semi-major axis 1.3300 AU
Distance from Earth 202.46 light-years
Earth Similarity Index 0.321
Travel time at Voyager 1 speed 3,570,304 years

HD 112300 b Planet Profile

Physical Specs

Radius

12.20 R⊕

Radius (Jupiter)

1.090 R♃

Mass

5,031.22 M⊕

Mass (Jupiter)

15.830 M♃

Density

15.20 g/cm³

Surface Gravity

33.80 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.321

HZ Position Unknown

Controversial No

Discovery

Year 2023

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 112300 b	Jupiter
Radius (R⊕)	1.00	12.20	11.21
Mass (M⊕)	1.00	5,031.22	317.83
Density (g/cm³)	5.51	15.20	1.33
Surface Gravity (g)	1.00	33.80	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	5,031.224 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 112300

HIP

HIP 63090

TIC

TIC 411188061

Gaia DR2

Gaia DR2 3704342295605242112

Gaia DR3

Gaia DR3 3704342295607157120

System

HD 112300

Percentile among Gas Giant cohort

Radius 12.200 R⊕ · percentile 19 / cohort 1771

Mass 5,031.224 M⊕ · percentile 94 / cohort 1747

Orbital period 466.63 d · percentile 66 / cohort 1533

Distance 62.07 pc · percentile 26 / cohort 1759

ESI 0.321 · percentile 63 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

466.630 days

Semi-major axis

1.3300 AU

Eccentricity

0.360

Inclination

— °

Year Length

A year here lasts about 1.28 Earth years on a highly eccentric trajectory at a mean orbital distance of 1.3300 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.321

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Lee et al. 2023

Instrument

BOES Echelle Spectrograph

Publication

2023-07

Observation locale

Ground

Discovery cohort

Planets confirmed in 2023 at Bohyunsan Optical Astronomical Observatory (3 shown).

HD 36384 b · Gas Giant HD 18438 b · Gas Giant HD 6860 b · Gas Giant

Host System: HD 112300

Spectral Class

M-type red dwarf

Effective Temperature

3,657 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

65.800 R☉

Stellar Mass

1.400 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

0.800 dex

Rotational v·sin i

8.10 km/s

Rotation period

4,200.00 days

Metallicity ratio

[Fe/H]

Distance

62.07 parsec

Light-years 202.46 ly

V-band magnitude

3.40 mag

Voyager-speed travel 3,570,304 yr

Multi-band Host Photometry — 7 bands

Astrometric Data

Parallax

16.110 mas

Total Proper Motion

471.362 mas/yr

PM Right Ascension

-468.22 mas/yr

PM Declination

-54.33 mas/yr

Galactic Cartesian (pc)

x = -0.969 · y = -0.240 · z = 0.059

Equatorial (J2000)

RA 193.89884° · Dec 3.39724°

Galactic ℓ, b

305.509° · 66.248°

Ecliptic λ, β

191.455° · 8.612°

HTM-20 index

334304971

Similar Worlds

ROXs 12 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 445.7 ly

HD 220074 b

Gas Giant · M-type red dwarf

Radius 12.20 R⊕ · 1,058.5 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