Confirmed Exoplanet Discovered 2024

KMT-2016-BLG-2321L b

A gas giant orbiting the unknown KMT-2016-BLG-2321L, located approximately 11,676.4 light-years from Earth.

Key parameters at a glance

  • A radius of 13.80 Earth radii
  • A mass of 301.94 Earth masses
  • Surface gravity around 1.59 g
  • Semi-major axis 3.5800 AU
  • Distance from Earth 11,676.38 light-years
  • Earth Similarity Index 0.305
  • Travel time at Voyager 1 speed 205,913,034 years

KMT-2016-BLG-2321L b Planet Profile

Physical Specs

Radius
13.80 R⊕
Radius (Jupiter)
1.230 R♃
Mass
301.94 M⊕
Mass (Jupiter)
0.950 M♃
Density
0.63 g/cm³
Surface Gravity
1.59 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.305
HZ Position Unknown
Controversial No

Discovery

Year 2024
Method Microlensing
Facility KMTNet
Telescope 1.6 m wide-field telescope

Size rank in cohort

Rank by radius

#510of 1771

top 28.7%

This planet

13.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth KMT-2016-BLG-2321L b Jupiter
Radius (R⊕)1.0013.8011.21
Mass (M⊕)1.00301.94317.83
Density (g/cm³)5.510.631.33
Surface Gravity (g)1.001.592.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 301.937 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 13.800 R⊕ · percentile 70 / cohort 1771
Mass 301.937 M⊕ · percentile 33 / cohort 1747
Distance 3,580.00 pc · percentile 92 / cohort 1759
ESI 0.305 · percentile 60 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
3.5800 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)

0.305

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Shin et al. 2024

Instrument

18k Mosaic CCD camera

Publication

2024-06

Observation locale

Ground

Host System: KMT-2016-BLG-2321L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.730 M☉

Metallicity [Fe/H]

Distance
3,580.00 parsec
Light-years 11,676.38 ly
V-band magnitude
mag
Voyager-speed travel 205,913,034 yr

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