Confirmed Exoplanet Discovered 2024

KMT-2023-BLG-0416L b

A sub-neptune orbiting the unknown KMT-2023-BLG-0416L, located approximately 19,243.2 light-years from Earth.

Key parameters at a glance

  • A radius of 3.67 Earth radii
  • A mass of 13.03 Earth masses
  • Surface gravity around 0.97 g
  • Semi-major axis 2.9600 AU
  • Distance from Earth 19,243.20 light-years
  • Earth Similarity Index 0.572
  • Travel time at Voyager 1 speed 339,353,884 years

KMT-2023-BLG-0416L b Planet Profile

Physical Specs

Radius
3.67 R⊕
Radius (Jupiter)
0.327 R♃
Mass
13.03 M⊕
Mass (Jupiter)
0.041 M♃
Density
1.45 g/cm³
Surface Gravity
0.97 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.572
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

#104of 1978

top 5.2%

This planet

3.67R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth KMT-2023-BLG-0416L b Jupiter
Radius (R⊕)1.003.6711.21
Mass (M⊕)1.0013.03317.83
Density (g/cm³)5.511.451.33
Surface Gravity (g)1.000.972.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 13.031 M⊕ Direct mass measurement (not derived).

Percentile among Sub-Neptune cohort

Radius 3.670 R⊕ · percentile 95 / cohort 1978
Mass 13.031 M⊕ · percentile 88 / cohort 1978
Distance 5,900.00 pc · percentile 99 / cohort 1975
ESI 0.572 · percentile 79 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
2.9600 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)

0.572

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Han et al. 2024

Instrument

18k Mosaic CCD camera

Publication

2024-03

Observation locale

Ground

Host System: KMT-2023-BLG-0416L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.630 M☉

Metallicity [Fe/H]

Distance
5,900.00 parsec
Light-years 19,243.20 ly
V-band magnitude
mag
Voyager-speed travel 339,353,884 yr

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