Confirmed Exoplanet Discovered 2021

OGLE-2019-BLG-0960L b

A super-earth orbiting the unknown OGLE-2019-BLG-0960L, located approximately 3,196.3 light-years from Earth.

Key parameters at a glance

  • A radius of 1.39 Earth radii
  • A mass of 2.50 Earth masses
  • Surface gravity around 1.29 g
  • Semi-major axis 1.9000 AU
  • Distance from Earth 3,196.33 light-years
  • Earth Similarity Index 0.920
  • Travel time at Voyager 1 speed 56,367,255 years

Context from the literature

OGLE-2019-BLG-0960Lb is an exoplanet that was discovered in January 2021 by gravitational microlensing. It is approximately twice the mass of Earth, making it a super-Earth. At the time of discovery, it was the lowest mass-ratio planet to be detected via microlensing; that is, the least massive planet relative to the mass of its host star. Its host star, OGLE-2019-BLG-0960L, has an mass between 0.3 and 0.6 M☉.

Excerpted from Wikipedia · full article

OGLE-2019-BLG-0960L b Planet Profile

Physical Specs

Radius
1.39 R⊕
Radius (Jupiter)
0.124 R♃
Mass
2.50 M⊕
Mass (Jupiter)
0.008 M♃
Density
5.12 g/cm³
Surface Gravity
1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.920
HZ Position Unknown
Controversial No

Discovery

Year 2021
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#940of 1176

top 79.8%

This planet

1.39R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth OGLE-2019-BLG-0960L b Jupiter
Radius (R⊕)1.001.3911.21
Mass (M⊕)1.002.50317.83
Density (g/cm³)5.515.121.33
Surface Gravity (g)1.001.292.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 2.500 M⊕ Direct mass measurement (not derived).

Percentile among Super-Earth cohort

Radius 1.390 R⊕ · percentile 19 / cohort 1176
Mass 2.500 M⊕ · percentile 19 / cohort 1176
Distance 980.00 pc · percentile 80 / cohort 1171
ESI 0.920 · percentile 98 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
1.9000 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)

0.920

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Yee et al. 2021

Instrument

OGLE CCD Array

Publication

2021-11

Observation locale

Ground

Host System: OGLE-2019-BLG-0960L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.500 M☉

Metallicity [Fe/H]

Distance
980.00 parsec
Light-years 3,196.33 ly
V-band magnitude
mag
Voyager-speed travel 56,367,255 yr

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