Confirmed Exoplanet Discovered 2022

OGLE-2018-BLG-0383L b

A sub-neptune orbiting the unknown OGLE-2018-BLG-0383L, located approximately 25,114.0 light-years from Earth.

Key parameters at a glance

  • A radius of 2.41 Earth radii
  • A mass of 6.40 Earth masses
  • Surface gravity around 1.10 g
  • Semi-major axis 1.8000 AU
  • Distance from Earth 25,114.01 light-years
  • Earth Similarity Index 0.717
  • Travel time at Voyager 1 speed 442,885,577 years

OGLE-2018-BLG-0383L b Planet Profile

Physical Specs

Radius
2.41 R⊕
Radius (Jupiter)
0.215 R♃
Mass
6.40 M⊕
Mass (Jupiter)
0.020 M♃
Density
2.51 g/cm³
Surface Gravity
1.10 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.717
HZ Position Unknown
Controversial No

Discovery

Year 2022
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#1312of 1978

top 66.3%

This planet

2.41R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth OGLE-2018-BLG-0383L b Jupiter
Radius (R⊕)1.002.4111.21
Mass (M⊕)1.006.40317.83
Density (g/cm³)5.512.511.33
Surface Gravity (g)1.001.102.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 6.400 M⊕ Direct mass measurement (not derived).

Percentile among Sub-Neptune cohort

Radius 2.410 R⊕ · percentile 33 / cohort 1978
Mass 6.400 M⊕ · percentile 32 / cohort 1978
Distance 7,700.00 pc · percentile 100 / cohort 1975
ESI 0.717 · percentile 94 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
1.8000 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)

0.717

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Wang et al. 2022

Instrument

OGLE CCD Array

Publication

2022-02

Observation locale

Ground

Host System: OGLE-2018-BLG-0383L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.100 M☉

Metallicity [Fe/H]

Distance
7,700.00 parsec
Light-years 25,114.01 ly
V-band magnitude
mag
Voyager-speed travel 442,885,577 yr

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