Confirmed Exoplanet Discovered 2013

MOA-2011-BLG-322L b

A gas giant orbiting the unknown MOA-2011-BLG-322L, located approximately 24,657.4 light-years from Earth.

Key parameters at a glance

  • A radius of 12.40 Earth radii
  • A mass of 3,690.00 Earth masses
  • Surface gravity around 24.00 g
  • Semi-major axis 4.3000 AU
  • Distance from Earth 24,657.39 light-years
  • Earth Similarity Index 0.363
  • Travel time at Voyager 1 speed 434,833,112 years

MOA-2011-BLG-322L b Planet Profile

Physical Specs

Radius
12.40 R⊕
Radius (Jupiter)
1.110 R♃
Mass
3,690.00 M⊕
Mass (Jupiter)
11.600 M♃
Density
10.60 g/cm³
Surface Gravity
24.00 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.363
HZ Position Unknown
Controversial No

Discovery

Year 2013
Method Microlensing
Facility MOA
Telescope 1.8 m MOA Telescope

Size rank in cohort

Rank by radius

#1298of 1771

top 73.2%

This planet

12.40R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth MOA-2011-BLG-322L b Jupiter
Radius (R⊕)1.0012.4011.21
Mass (M⊕)1.003,690.00317.83
Density (g/cm³)5.5110.601.33
Surface Gravity (g)1.0024.002.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 3,690.000 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 12.400 R⊕ · percentile 25 / cohort 1771
Mass 3,690.000 M⊕ · percentile 90 / cohort 1747
Distance 7,560.00 pc · percentile 99 / cohort 1759
ESI 0.363 · percentile 74 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
4.3000 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)

0.363

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Shvartzvald et al. 2014

Instrument

MOA CCD Array

Publication

2014-03

Observation locale

Ground

Discovery cohort

Planets confirmed in 2013 at MOA (2 shown).

Host System: MOA-2011-BLG-322L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.390 M☉

Metallicity [Fe/H]

Distance
7,560.00 parsec
Light-years 24,657.39 ly
V-band magnitude
mag
Voyager-speed travel 434,833,112 yr

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