Key parameters at a glance

A radius of 13.60 Earth radii
A mass of 480.00 Earth masses
Surface gravity around 2.60 g
Semi-major axis 2.0000 AU
Distance from Earth 7,501.59 light-years
Earth Similarity Index 0.342
Travel time at Voyager 1 speed 132,290,497 years

MOA-2010-BLG-477L b Planet Profile

Physical Specs

Radius

13.60 R⊕

Radius (Jupiter)

1.210 R♃

Mass

480.00 M⊕

Mass (Jupiter)

1.500 M♃

Density

1.05 g/cm³

Surface Gravity

2.60 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.342

HZ Position Unknown

Controversial No

Discovery

Year 2012

Method Microlensing

Facility MOA

Telescope 1.8 m MOA Telescope

Size rank in cohort

Rank by radius

#609of 1771

top 34.3%

This planet

13.60R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 19994 b 13.60 R⊕ HD 205739 b 13.60 R⊕ HD 79498 b 13.60 R⊕

Metric	Earth	MOA-2010-BLG-477L b	Jupiter
Radius (R⊕)	1.00	13.60	11.21
Mass (M⊕)	1.00	480.00	317.83
Density (g/cm³)	5.51	1.05	1.33
Surface Gravity (g)	1.00	2.60	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	480.000 M⊕	Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 13.600 R⊕ · percentile 63 / cohort 1771

Mass 480.000 M⊕ · percentile 48 / cohort 1747

Distance 2,300.00 pc · percentile 90 / cohort 1759

ESI 0.342 · percentile 69 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

2.0000 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)

0.342

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Bachelet et al. 2012

Instrument

MOA CCD Array

Publication

2012-07

Observation locale

Ground

Discovery cohort

Planets confirmed in 2012 at MOA (3 shown).

MOA-2011-BLG-293L b · Gas Giant MOA-bin-1L b · Gas Giant MOA-2010-BLG-073L b · Gas Giant

Host System: MOA-2010-BLG-477L

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,950 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

—

Stellar Mass

0.670 M☉

Metallicity [Fe/H]

—

Distance

2,300.00 parsec

Light-years 7,501.59 ly

V-band magnitude

— mag

Voyager-speed travel 132,290,497 yr