Confirmed Exoplanet Discovered 2025

KMT-2024-BLG-1005L b

A gas giant orbiting the unknown KMT-2024-BLG-1005L, located approximately 22,667.8 light-years from Earth.

Key parameters at a glance

  • A radius of 12.10 Earth radii
  • A mass of 6,674.40 Earth masses
  • Surface gravity around 45.59 g
  • Semi-major axis 0.7800 AU
  • Distance from Earth 22,667.84 light-years
  • Earth Similarity Index 0.286
  • Travel time at Voyager 1 speed 399,747,371 years

KMT-2024-BLG-1005L b Planet Profile

Physical Specs

Radius
12.10 R⊕
Radius (Jupiter)
1.080 R♃
Mass
6,674.40 M⊕
Mass (Jupiter)
21.000 M♃
Density
20.70 g/cm³
Surface Gravity
45.59 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.286
HZ Position Unknown
Controversial No

Discovery

Year 2025
Method Microlensing
Facility KMTNet
Telescope 1.6 m wide-field telescope

Size rank in cohort

Rank by radius

#1454of 1771

top 82.0%

This planet

12.10R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth KMT-2024-BLG-1005L b Jupiter
Radius (R⊕)1.0012.1011.21
Mass (M⊕)1.006,674.40317.83
Density (g/cm³)5.5120.701.33
Surface Gravity (g)1.0045.592.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 6,674.397 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 12.100 R⊕ · percentile 16 / cohort 1771
Mass 6,674.397 M⊕ · percentile 97 / cohort 1747
Distance 6,950.00 pc · percentile 98 / cohort 1759
ESI 0.286 · percentile 54 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
0.7800 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)

0.286

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Han et al. 2025

Instrument

18k Mosaic CCD camera

Publication

2025-12

Observation locale

Ground

Host System: KMT-2024-BLG-1005L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.055 M☉

Metallicity [Fe/H]

Distance
6,950.00 parsec
Light-years 22,667.84 ly
V-band magnitude
mag
Voyager-speed travel 399,747,371 yr

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