Key parameters at a glance
- A radius of 13.90 Earth radii
- A mass of 286.05 Earth masses
- Surface gravity around 1.48 g
- Semi-major axis 1.8500 AU
- Distance from Earth 9,686.83 light-years
- Earth Similarity Index 0.299
- Travel time at Voyager 1 speed 170,827,294 years
KMT-2021-BLG-2478L b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#456of 1771
top 25.7%
This planet
13.90R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | KMT-2021-BLG-2478L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.90 | 11.21 |
| Mass (M⊕) | 1.00 | 286.05 | 317.83 |
| Density (g/cm³) | 5.51 | 0.59 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.48 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 286.046 M⊕ | Direct mass measurement (not derived). |
Percentile among Gas Giant 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)
0.299
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Ryu et al. 2023Instrument
18k Mosaic CCD camera
Publication
2023-03
Observation locale
Ground
Discovery cohort
Planets confirmed in 2023 at KMTNet (12 shown).
Host System: KMT-2021-BLG-2478L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.200 M☉
Metallicity [Fe/H]
—
Similar Worlds
KMT-2022-BLG-2076L b
Gas Giant · Unknown
Radius 13.90 R⊕ · 18,166.9 ly
OGLE-2016-BLG-1227L b
Gas Giant · Unknown
Radius 13.90 R⊕ · —
OGLE-2011-BLG-0265L b
Gas Giant · Unknown
Radius 13.90 R⊕ · 14,285.6 ly
OGLE-2018-BLG-0932L b
Gas Giant · Unknown
Radius 13.90 R⊕ · 21,591.5 ly
PSR J2322-2650 b
Gas Giant · Unknown
Radius 13.90 R⊕ · 750.2 ly
KMT-2021-BLG-1150L b
Gas Giant · Unknown
Radius 13.90 R⊕ · 12,393.9 ly