Confirmed Exoplanet Discovered 2019

OGLE-2018-BLG-0740L b

A gas giant orbiting the g-type yellow (sun-like) OGLE-2018-BLG-0740L, located approximately 10,437.0 light-years from Earth.

Key parameters at a glance

  • A radius of 12.90 Earth radii
  • A mass of 1,500.00 Earth masses
  • Surface gravity around 9.01 g
  • An orbital period of 5,480.000 days
  • Semi-major axis 5.0000 AU
  • Distance from Earth 10,436.99 light-years
  • Earth Similarity Index 0.426
  • Travel time at Voyager 1 speed 184,056,344 years

OGLE-2018-BLG-0740L b Planet Profile

Physical Specs

Radius
12.90 R⊕
Radius (Jupiter)
1.150 R♃
Mass
1,500.00 M⊕
Mass (Jupiter)
4.800 M♃
Density
3.84 g/cm³
Surface Gravity
9.01 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.426
HZ Position Unknown
Controversial No

Discovery

Year 2019
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#1011of 1771

top 57.0%

This planet

12.90R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth OGLE-2018-BLG-0740L b Jupiter
Radius (R⊕)1.0012.9011.21
Mass (M⊕)1.001,500.00317.83
Density (g/cm³)5.513.841.33
Surface Gravity (g)1.009.012.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 1,500.000 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 12.900 R⊕ · percentile 41 / cohort 1771
Mass 1,500.000 M⊕ · percentile 74 / cohort 1747
Orbital period 5,480.00 d · percentile 93 / cohort 1533
Distance 3,200.00 pc · percentile 91 / cohort 1759
ESI 0.426 · percentile 93 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
5,480.000 days
Semi-major axis
5.0000 AU
Eccentricity
0.000
Inclination
°

Year Length

A year here lasts about 15.00 Earth years on a nearly circular orbit at a mean orbital distance of 5.0000 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.426

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Han et al. 2019

Instrument

OGLE CCD Array

Publication

2019-09

Observation locale

Ground

Host System: OGLE-2018-BLG-0740L

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,912 K — hotter than the Sun (5,778 K)

Estimated Age

Stellar Radius

Stellar Mass

1.000 M☉

Metallicity [Fe/H]

-0.24

Distance
3,200.00 parsec
Light-years 10,436.99 ly
V-band magnitude
18.21 mag
Voyager-speed travel 184,056,344 yr

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