Key parameters at a glance
- A radius of 1.43 Earth radii
- A mass of 2.63 Earth masses
- Surface gravity around 1.29 g
- Semi-major axis 2.6300 AU
- Distance from Earth 20,254.29 light-years
- Earth Similarity Index 0.909
- Travel time at Voyager 1 speed 357,184,342 years
KMT-2023-BLG-1866L b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#864of 1176
top 73.4%
This planet
1.43R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | KMT-2023-BLG-1866L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.43 | 11.21 |
| Mass (M⊕) | 1.00 | 2.63 | 317.83 |
| Density (g/cm³) | 5.51 | 4.94 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.29 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 2.630 M⊕ | Direct mass measurement (not derived). |
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
Orbital period for this planet has not yet been measured.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.909
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Han et al. 2024Instrument
18k Mosaic CCD camera
Publication
2024-07
Observation locale
Ground
Discovery cohort
Planets confirmed in 2024 at KMTNet (12 shown).
Host System: KMT-2023-BLG-1866L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.510 M☉
Metallicity [Fe/H]
—
Similar Worlds
OGLE-2019-BLG-0960L b
Super-Earth · Unknown
Radius 1.39 R⊕ · 3,196.3 ly
OGLE-2019-BLG-1053L b
Super-Earth · Unknown
Radius 1.38 R⊕ · 22,178.6 ly
KMT-2016-BLG-1105L b
Super-Earth · Unknown
Radius 1.33 R⊕ · 16,568.7 ly
OGLE-2017-BLG-0173L b
Super-Earth · Unknown
Radius 1.62 R⊕ · 15,345.6 ly
MOA-2013-BLG-605L b
Super-Earth · Unknown
Radius 1.62 R⊕ · 2,772.3 ly
KMT-2017-BLG-1194L b
Super-Earth · Unknown
Radius 1.70 R⊕ · 13,829.0 ly