Key parameters at a glance
- A radius of 14.20 Earth radii
- A mass of 155.74 Earth masses
- Surface gravity around 0.77 g
- Semi-major axis 7.7800 AU
- Distance from Earth 23,581.08 light-years
- Earth Similarity Index 0.253
- Travel time at Voyager 1 speed 415,852,301 years
KMT-2021-BLG-0852L b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#334of 1771
top 18.8%
This planet
14.20R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | KMT-2021-BLG-0852L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.20 | 11.21 |
| Mass (M⊕) | 1.00 | 155.74 | 317.83 |
| Density (g/cm³) | 5.51 | 0.30 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.77 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 155.736 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)
0.253
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Han et al. 2026Instrument
18k Mosaic CCD camera
Publication
2026-03
Observation locale
Ground
Discovery cohort
Planets confirmed in 2026 at KMTNet (12 shown).
Host System: KMT-2021-BLG-0852L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.750 M☉
Metallicity [Fe/H]
—
Similar Worlds
KMT-2017-BLG-2331L b
Gas Giant · Unknown
Radius 14.20 R⊕ · 26,190.3 ly
OGLE-2017-BLG-0604L b
Gas Giant · Unknown
Radius 14.20 R⊕ · 12,883.2 ly
OGLE-2019-BLG-0304L b
Gas Giant · Unknown
Radius 14.20 R⊕ · 22,765.7 ly
OGLE-2017-BLG-0406L b
Gas Giant · Unknown
Radius 14.20 R⊕ · 16,960.1 ly
MOA-2010-BLG-117L b
Gas Giant · Unknown
Radius 14.20 R⊕ · 11,415.5 ly
KMT-2022-BLG-0303L b
Gas Giant · Unknown
Radius 14.20 R⊕ · 21,428.4 ly