Key parameters at a glance
- A radius of 14.00 Earth radii
- A mass of 232.01 Earth masses
- Surface gravity around 1.18 g
- Semi-major axis 1.9000 AU
- Distance from Earth 22,504.76 light-years
- Earth Similarity Index 0.283
- Travel time at Voyager 1 speed 396,871,491 years
KMT-2021-BLG-1898L b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#415of 1771
top 23.4%
This planet
14.00R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | KMT-2021-BLG-1898L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.00 | 11.21 |
| Mass (M⊕) | 1.00 | 232.01 | 317.83 |
| Density (g/cm³) | 5.51 | 0.47 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.18 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 232.015 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)
0.283
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Han et al. 2022Instrument
18k Mosaic CCD camera
Publication
2022-07
Observation locale
Ground
Discovery cohort
Planets confirmed in 2022 at KMTNet (12 shown).
Host System: KMT-2021-BLG-1898L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.480 M☉
Metallicity [Fe/H]
—
Similar Worlds
KMT-2017-BLG-1146L b
Gas Giant · Unknown
Radius 14.00 R⊕ · 21,200.1 ly
OGLE-2018-BLG-1428L b
Gas Giant · Unknown
Radius 14.00 R⊕ · 20,286.9 ly
OGLE-2015-BLG-0051L b
Gas Giant · Unknown
Radius 14.00 R⊕ · 26,744.8 ly
OGLE-2017-BLG-1522L b
Gas Giant · Unknown
Radius 14.00 R⊕ · 24,429.1 ly
OGLE-2017-BLG-0373L b
Gas Giant · Unknown
Radius 14.00 R⊕ · 19,292.1 ly
OGLE-2006-BLG-109L b
Gas Giant · Unknown
Radius 14.00 R⊕ · 4,925.0 ly