Confirmed Exoplanet Discovered 2020

KMT-2019-BLG-1953L b

A gas giant orbiting the unknown KMT-2019-BLG-1953L, located approximately 22,961.4 light-years from Earth.

Key parameters at a glance

  • A radius of 14.10 Earth radii
  • A mass of 200.00 Earth masses
  • Surface gravity around 1.01 g
  • Distance from Earth 22,961.38 light-years
  • Earth Similarity Index 0.271
  • Travel time at Voyager 1 speed 404,923,956 years

KMT-2019-BLG-1953L b Planet Profile

Physical Specs

Radius
14.10 R⊕
Radius (Jupiter)
1.260 R♃
Mass
200.00 M⊕
Mass (Jupiter)
0.640 M♃
Density
0.39 g/cm³
Surface Gravity
1.01 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.271
HZ Position Unknown
Controversial No

Discovery

Year 2020
Method Microlensing
Facility KMTNet
Telescope 1.6 m wide-field telescope

Size rank in cohort

Rank by radius

#371of 1771

top 20.9%

This planet

14.10R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth KMT-2019-BLG-1953L b Jupiter
Radius (R⊕)1.0014.1011.21
Mass (M⊕)1.00200.00317.83
Density (g/cm³)5.510.391.33
Surface Gravity (g)1.001.012.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 200.000 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 14.100 R⊕ · percentile 77 / cohort 1771
Mass 200.000 M⊕ · percentile 20 / cohort 1747
Distance 7,040.00 pc · percentile 98 / cohort 1759
ESI 0.271 · percentile 50 / cohort 1771

Orbit & Habitability

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.271

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Han et al. 2020

Instrument

18k Mosaic CCD camera

Publication

2020-07

Observation locale

Ground

Host System: KMT-2019-BLG-1953L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.310 M☉

Metallicity [Fe/H]

Distance
7,040.00 parsec
Light-years 22,961.38 ly
V-band magnitude
mag
Voyager-speed travel 404,923,956 yr

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