Key parameters at a glance

A radius of 12.20 Earth radii
A mass of 5,720.91 Earth masses
Surface gravity around 38.44 g
Semi-major axis 572.0000 AU
Equilibrium temperature 2,369 K (2096 °C)
Distance from Earth 383.02 light-years
Earth Similarity Index 0.049
Travel time at Voyager 1 speed 6,754,580 years

2MASS J03590986+2009361 b Planet Profile

Physical Specs

Radius

12.20 R⊕

Radius (Jupiter)

1.080 R♃

Mass

5,720.91 M⊕

Mass (Jupiter)

18.000 M♃

Density

17.30 g/cm³

Surface Gravity

38.44 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.049

HZ Position Unknown

Controversial No

Discovery

Year 2024

Method Imaging

Facility European Space Agency (ESA) Gaia Satellite

Telescope 1.45 m x 0.5 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	2MASS J03590986+2009361 b	Jupiter
Radius (R⊕)	1.00	12.20	11.21
Mass (M⊕)	1.00	5,720.91	317.83
Density (g/cm³)	5.51	17.30	1.33
Surface Gravity (g)	1.00	38.44	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	5,720.911 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 14183352

Gaia DR2

Gaia DR2 51369428065705600

Gaia DR3

Gaia DR3 51369428065705600

System

2MASS J03590986+2009361

Percentile among Gas Giant cohort

Radius 12.200 R⊕ · percentile 19 / cohort 1771

Mass 5,720.911 M⊕ · percentile 95 / cohort 1747

Distance 117.44 pc · percentile 38 / cohort 1759

ESI 0.049 · percentile 4 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

572.0000 AU

Eccentricity

—

Inclination

— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

2,369K

(2096 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.049

0 = alien, 1 = Earth-identical

Insufficient insolation data — the dayside is scorched.

Discovery Paper

Primary reference

Michel & Mugrauer 2024

Instrument

Gaia CCD array

Publication

2024-01

Observation locale

Space

Discovery cohort

Planets confirmed in 2024 at European Space Agency (ESA) Gaia Satellite (7 shown).

Gaia22dkvL b · Gas Giant 2MASS J21252752-8138278 b · Gas Giant G 196-3 b · Gas Giant 2MASS J11550485-7919108 b · Gas Giant HIP 77900 b · Gas Giant ITG 15 b · Gas Giant 2MASS J11011926-7732383 b · Gas Giant

Host System: 2MASS J03590986+2009361

Spectral Class

M-type red dwarf

Effective Temperature

2,943 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.290 R☉

Stellar Mass

0.265 M☉

Metallicity [Fe/H]

—

Distance

117.44 parsec

Light-years 383.02 ly

V-band magnitude

— mag

Voyager-speed travel 6,754,580 yr

Multi-band Host Photometry — 10 bands

Astrometric Data

Parallax

8.492 mas

Total Proper Motion

14.979 mas/yr

PM Right Ascension

4.95 mas/yr

PM Declination

-14.14 mas/yr

Galactic Cartesian (pc)

x = 0.472 · y = 0.811 · z = 0.345

Equatorial (J2000)

RA 59.79110° · Dec 20.15998°

Galactic ℓ, b

171.795° · -24.416°

Ecliptic λ, β

61.810° · -0.372°

HTM-20 index

-1682722052

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

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

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 Imaging Discoveries European Space Agency (ESA) Gaia Satellite Mission M-type red dwarf Hosts