Confirmed Exoplanet Discovered 2020

OGLE-2018-BLG-0677L b

A super-earth orbiting the unknown OGLE-2018-BLG-0677L, located approximately 24,722.6 light-years from Earth.

Key parameters at a glance

  • A radius of 1.82 Earth radii
  • A mass of 3.96 Earth masses
  • Surface gravity around 1.20 g
  • Semi-major axis 0.6300 AU
  • Distance from Earth 24,722.62 light-years
  • Earth Similarity Index 0.820
  • Travel time at Voyager 1 speed 435,983,464 years

OGLE-2018-BLG-0677L b Planet Profile

Physical Specs

Radius
1.82 R⊕
Radius (Jupiter)
0.162 R♃
Mass
3.96 M⊕
Mass (Jupiter)
0.013 M♃
Density
3.61 g/cm³
Surface Gravity
1.20 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.820
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

#235of 1176

top 19.9%

This planet

1.82R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth OGLE-2018-BLG-0677L b Jupiter
Radius (R⊕)1.001.8211.21
Mass (M⊕)1.003.96317.83
Density (g/cm³)5.513.611.33
Surface Gravity (g)1.001.202.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 3.960 M⊕ Direct mass measurement (not derived).

Percentile among Super-Earth cohort

Radius 1.820 R⊕ · percentile 79 / cohort 1176
Mass 3.960 M⊕ · percentile 72 / cohort 1176
Distance 7,580.00 pc · percentile 100 / cohort 1171
ESI 0.820 · percentile 91 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
0.6300 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)

0.820

0 = alien, 1 = Earth-identical

Discovery Paper

Instrument

OGLE CCD Array

Publication

2020-06

Observation locale

Ground

Host System: OGLE-2018-BLG-0677L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.120 M☉

Metallicity [Fe/H]

Distance
7,580.00 parsec
Light-years 24,722.62 ly
V-band magnitude
mag
Voyager-speed travel 435,983,464 yr

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