Key parameters at a glance

A radius of 12.60 Earth radii
A mass of 2,383.60 Earth masses
Surface gravity around 15.01 g
Semi-major axis 15.0000 AU
Distance from Earth 392.77 light-years
Earth Similarity Index 0.422
Travel time at Voyager 1 speed 6,926,500 years

Context from the literature

2MASS J0441+2301 is a young quadruple system hosting a planetary-mass object, a red dwarf star and two brown dwarfs, approximately 470 light years away.

Excerpted from Wikipedia · full article

2MASS J04414489+2301513 b Planet Profile

Physical Specs

Radius

12.60 R⊕

Radius (Jupiter)

1.130 R♃

Mass

2,383.60 M⊕

Mass (Jupiter)

7.500 M♃

Density

6.55 g/cm³

Surface Gravity

15.01 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.422

HZ Position Unknown

Controversial No

Discovery

Year 2010

Method Imaging

Facility Hubble Space Telescope

Telescope 2.4 m Hubble Space 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

HD 47536 b 12.60 R⊕ Kepler-419 c 12.60 R⊕ WD 0806-661 b 12.60 R⊕

Metric	Earth	2MASS J04414489+2301513 b	Jupiter
Radius (R⊕)	1.00	12.60	11.21
Mass (M⊕)	1.00	2,383.60	317.83
Density (g/cm³)	5.51	6.55	1.33
Surface Gravity (g)	1.00	15.01	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2,383.600 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 118893899

Gaia DR2

Gaia DR2 146487556211644544

Gaia DR3

Gaia DR3 146487556211644544

System

2MASS J04414489+2301513

Percentile among Gas Giant cohort

Radius 12.600 R⊕ · percentile 31 / cohort 1771

Mass 2,383.600 M⊕ · percentile 82 / cohort 1747

Distance 120.42 pc · percentile 38 / cohort 1759

ESI 0.422 · percentile 92 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

15.0000 AU

Eccentricity

—

Inclination

— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.422

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Todorov et al. 2010

Instrument

WFPC2 Camera

Publication

2010-05

Observation locale

Space

Host System: 2MASS J04414489+2301513

Spectral Class

M-type red dwarf

Effective Temperature

2,936 K — cooler than the Sun (5,778 K)

Estimated Age

0.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.232 R☉

Stellar Mass

0.019 M☉

Metallicity [Fe/H]

—

Distance

120.42 parsec

Light-years 392.77 ly

V-band magnitude

— mag

Voyager-speed travel 6,926,500 yr

Multi-band Host Photometry — 5 bands

Astrometric Data

Parallax

8.304 mas

Total Proper Motion

23.200 mas/yr

PM Right Ascension

9.00 mas/yr

PM Declination

-21.40 mas/yr

Galactic Cartesian (pc)

x = 0.308 · y = 0.867 · z = 0.391

Equatorial (J2000)

RA 70.43711° · Dec 23.03085°

Galactic ℓ, b

176.511° · -15.114°

Ecliptic λ, β

72.046° · 0.802°

HTM-20 index

1199375091

Wikipedia → Image: Wikimedia Commons · NASA · Public domain

Similar Worlds

HIP 55507 b

Gas Giant · M-type red dwarf

Radius 12.60 R⊕ · 83.1 ly

TOI-5292 A b

Gas Giant · M-type red dwarf

Radius 12.64 R⊕ · 1,099.5 ly

TOI-4666 b

Gas Giant · M-type red dwarf

Radius 12.53 R⊕ · 504.7 ly

HD 36384 b

Gas Giant · M-type red dwarf

Radius 12.70 R⊕ · 682.7 ly

TYC 2187-512-1 b

Gas Giant · M-type red dwarf

Radius 12.50 R⊕ · 50.5 ly

ROXs 42 B b

Gas Giant · M-type red dwarf

Radius 12.50 R⊕ · 468.3 ly

Explore Related Categories

Gas Giant Planets Imaging Discoveries Hubble Space Telescope Mission M-type red dwarf Hosts