Confirmed Exoplanet Discovered 2020

OGLE-2018-BLG-0532L b

A sub-neptune orbiting the unknown OGLE-2018-BLG-0532L, located approximately 2,521.2 light-years from Earth.

Key parameters at a glance

  • A radius of 2.37 Earth radii
  • A mass of 6.23 Earth masses
  • Surface gravity around 1.11 g
  • Semi-major axis 1.0640 AU
  • Distance from Earth 2,521.19 light-years
  • Earth Similarity Index 0.724
  • Travel time at Voyager 1 speed 44,461,111 years

OGLE-2018-BLG-0532L b Planet Profile

Physical Specs

Radius
2.37 R⊕
Radius (Jupiter)
0.212 R♃
Mass
6.23 M⊕
Mass (Jupiter)
0.020 M♃
Density
2.57 g/cm³
Surface Gravity
1.11 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.724
HZ Position Unknown
Controversial No

Discovery

Year 2020
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#1375of 1978

top 69.5%

This planet

2.37R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth OGLE-2018-BLG-0532L b Jupiter
Radius (R⊕)1.002.3711.21
Mass (M⊕)1.006.23317.83
Density (g/cm³)5.512.571.33
Surface Gravity (g)1.001.112.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 6.228 M⊕ Direct mass measurement (not derived).

Percentile among Sub-Neptune cohort

Radius 2.370 R⊕ · percentile 30 / cohort 1978
Mass 6.228 M⊕ · percentile 29 / cohort 1978
Distance 773.00 pc · percentile 64 / cohort 1975
ESI 0.724 · percentile 95 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
1.0640 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)

0.724

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Ryu et al. 2020

Instrument

OGLE CCD Array

Publication

2020-10

Observation locale

Ground

Host System: OGLE-2018-BLG-0532L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.195 M☉

Metallicity [Fe/H]

Distance
773.00 parsec
Light-years 2,521.19 ly
V-band magnitude
mag
Voyager-speed travel 44,461,111 yr

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