Confirmed Exoplanet Discovered 2020

OGLE-2017-BLG-1375L b

A gas giant orbiting the unknown OGLE-2017-BLG-1375L, located approximately 12,817.9 light-years from Earth.

Key parameters at a glance

  • A radius of 12.40 Earth radii
  • A mass of 3,585.00 Earth masses
  • Surface gravity around 23.32 g
  • Semi-major axis 3.0400 AU
  • Distance from Earth 12,817.93 light-years
  • Earth Similarity Index 0.367
  • Travel time at Voyager 1 speed 226,044,197 years

OGLE-2017-BLG-1375L b Planet Profile

Physical Specs

Radius
12.40 R⊕
Radius (Jupiter)
1.110 R♃
Mass
3,585.00 M⊕
Mass (Jupiter)
11.280 M♃
Density
10.30 g/cm³
Surface Gravity
23.32 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.367
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

#1298of 1771

top 73.2%

This planet

12.40R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth OGLE-2017-BLG-1375L b Jupiter
Radius (R⊕)1.0012.4011.21
Mass (M⊕)1.003,585.00317.83
Density (g/cm³)5.5110.301.33
Surface Gravity (g)1.0023.322.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 3,585.000 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 12.400 R⊕ · percentile 25 / cohort 1771
Mass 3,585.000 M⊕ · percentile 90 / cohort 1747
Distance 3,930.00 pc · percentile 92 / cohort 1759
ESI 0.367 · percentile 76 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
3.0400 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)

0.367

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Han et al. 2020

Instrument

OGLE CCD Array

Publication

2020-10

Observation locale

Ground

Host System: OGLE-2017-BLG-1375L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.810 M☉

Metallicity [Fe/H]

Distance
3,930.00 parsec
Light-years 12,817.93 ly
V-band magnitude
mag
Voyager-speed travel 226,044,197 yr

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