Key parameters at a glance

A radius of 11.90 Earth radii
A mass of 8,899.20 Earth masses
Surface gravity around 62.84 g
Semi-major axis 266.0000 AU
Equilibrium temperature 2,677 K (2404 °C)
Earth Similarity Index 0.036

2MASS J11011926-7732383 b Planet Profile

Physical Specs

Radius

11.90 R⊕

Radius (Jupiter)

1.060 R♃

Mass

8,899.20 M⊕

Mass (Jupiter)

28.000 M♃

Density

29.00 g/cm³

Surface Gravity

62.84 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.036

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

#1526of 1771

top 86.1%

This planet

11.90R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

2MASS J22501512+2325342 b 11.90 R⊕ KMT-2020-BLG-0414L c 11.90 R⊕ DENIS-P J082303.1-491201 b 11.90 R⊕

Metric	Earth	2MASS J11011926-7732383 b	Jupiter
Radius (R⊕)	1.00	11.90	11.21
Mass (M⊕)	1.00	8,899.20	317.83
Density (g/cm³)	5.51	29.00	1.33
Surface Gravity (g)	1.00	62.84	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	8,899.195 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 454227159

Gaia DR2

Gaia DR2 5201185574182015744

Gaia DR3

Gaia DR3 5201185574182015744

System

2MASS J11011926-7732383

Percentile among Gas Giant cohort

Radius 11.900 R⊕ · percentile 13 / cohort 1771

Mass 8,899.195 M⊕ · percentile 99 / cohort 1747

ESI 0.036 · percentile 1 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

266.0000 AU

Eccentricity

—

Inclination

— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

2,677K

(2404 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.036

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 J03590986+2009361 b · Gas Giant 2MASS J11550485-7919108 b · Gas Giant HIP 77900 b · Gas Giant ITG 15 b · Gas Giant

Host System: 2MASS J11011926-7732383

Spectral Class

Unknown

Effective Temperature

—

Estimated Age

—

Stellar Radius

—

Stellar Mass

—

Metallicity [Fe/H]

—

Multi-band Host Photometry — 9 bands

Similar Worlds

Luhman 16 b

Gas Giant · Unknown

Radius 11.90 R⊕ · —

KMT-2018-BLG-0885L b

Gas Giant · Unknown

Radius 11.90 R⊕ · 22,472.1 ly

KMT-2020-BLG-0414L c

Gas Giant · Unknown

Radius 11.90 R⊕ · 3,979.1 ly

MXB 1658-298 b

Gas Giant · Unknown

Radius 12.00 R⊕ · —

UCAC4 328-061594 b

Gas Giant · Unknown

Radius 12.10 R⊕ · 130.2 ly

KMT-2021-BLG-1770L b

Gas Giant · Unknown

Radius 12.10 R⊕ · 22,570.0 ly

Explore Related Categories

Gas Giant Planets Imaging Discoveries European Space Agency (ESA) Gaia Satellite Mission