Key parameters at a glance
- A radius of 7.71 Earth radii
- A mass of 46.00 Earth masses
- Surface gravity around 0.77 g
- Semi-major axis 2.7400 AU
- Distance from Earth 24,429.08 light-years
- Earth Similarity Index 0.363
- Travel time at Voyager 1 speed 430,806,879 years
MOA-2020-BLG-208L b Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#166of 574
top 28.7%
This planet
7.71R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | MOA-2020-BLG-208L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 7.71 | 11.21 |
| Mass (M⊕) | 1.00 | 46.00 | 317.83 |
| Density (g/cm³) | 5.51 | 0.55 | 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 | 46.000 M⊕ | Direct mass measurement (not derived). |
Percentile among Neptune-like 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)
0.363
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Olmschenk et al. 2023Instrument
MOA CCD Array
Publication
2023-04
Observation locale
Ground
Host System: MOA-2020-BLG-208L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.430 M☉
Metallicity [Fe/H]
—
Similar Worlds
OGLE-2018-BLG-0298L b
Neptune-like · Unknown
Radius 7.56 R⊕ · 21,330.6 ly
KMT-2024-BLG-2005L b
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KMT-2023-BLG-0469L b
Neptune-like · Unknown
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OGLE-2012-BLG-0838L b
Neptune-like · Unknown
Radius 8.39 R⊕ · 20,613.1 ly
KMT-2023-BLG-0735L b
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KMT-2021-BLG-0712L b
Neptune-like · Unknown
Radius 6.91 R⊕ · 10,078.2 ly