Key parameters at a glance
- A radius of 2.99 Earth radii
- A mass of 9.20 Earth masses
- Surface gravity around 1.03 g
- Semi-major axis 3.1000 AU
- Distance from Earth 15,981.64 light-years
- Earth Similarity Index 0.641
- Travel time at Voyager 1 speed 281,836,276 years
KMT-2019-BLG-0253L b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#529of 1978
top 26.7%
This planet
2.99R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | KMT-2019-BLG-0253L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.99 | 11.21 |
| Mass (M⊕) | 1.00 | 9.20 | 317.83 |
| Density (g/cm³) | 5.51 | 1.89 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.03 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 9.200 M⊕ | Direct mass measurement (not derived). |
Percentile among Sub-Neptune 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)
0.641
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Hwang et al. 2022Instrument
18k Mosaic CCD camera
Publication
2022-02
Observation locale
Ground
Discovery cohort
Planets confirmed in 2022 at KMTNet (12 shown).
Host System: KMT-2019-BLG-0253L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.700 M☉
Metallicity [Fe/H]
—
Similar Worlds
MOA-2010-BLG-328L b
Sub-Neptune · Unknown
Radius 2.99 R⊕ · 2,641.9 ly
OGLE-2017-BLG-0482L b
Sub-Neptune · Unknown
Radius 2.95 R⊕ · 18,917.0 ly
OGLE-2018-BLG-1185L b
Sub-Neptune · Unknown
Radius 2.83 R⊕ · 24,135.5 ly
KMT-2021-BLG-2609L b
Sub-Neptune · Unknown
Radius 3.17 R⊕ · 24,396.5 ly
KMT-2019-BLG-0842L b
Sub-Neptune · Unknown
Radius 3.19 R⊕ · 10,828.4 ly
MOA-2009-BLG-266L b
Sub-Neptune · Unknown
Radius 3.21 R⊕ · 9,915.1 ly