Key parameters at a glance
- A radius of 13.50 Earth radii
- A mass of 540.31 Earth masses
- Surface gravity around 2.96 g
- Semi-major axis 5.9000 AU
- Equilibrium temperature 34 K (-239 °C)
- Distance from Earth 22,472.15 light-years
- Earth Similarity Index 0.052
- Travel time at Voyager 1 speed 396,296,315 years
MOA-2007-BLG-400L b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#671of 1771
top 37.8%
This planet
13.50R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | MOA-2007-BLG-400L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.50 | 11.21 |
| Mass (M⊕) | 1.00 | 540.31 | 317.83 |
| Density (g/cm³) | 5.51 | 1.21 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.96 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 540.308 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
34K
(-239 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.052
0 = alien, 1 = Earth-identical
Insufficient insolation data — any water would exist as deep ice.
Discovery Paper
Primary reference
Dong et al. 2009Instrument
MOA CCD Array
Publication
2009-06
Observation locale
Ground
Host System: MOA-2007-BLG-400L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.690 M☉
Metallicity [Fe/H]
—
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