Key parameters at a glance
- A radius of 12.90 Earth radii
- A mass of 111.00 Earth masses
- Surface gravity around 0.67 g
- Semi-major axis 0.7630 AU
- Distance from Earth 3,153.93 light-years
- Earth Similarity Index 0.258
- Travel time at Voyager 1 speed 55,619,526 years
KMT-2018-BLG-1990L b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1011of 1771
top 57.0%
This planet
12.90R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | KMT-2018-BLG-1990L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.90 | 11.21 |
| Mass (M⊕) | 1.00 | 111.00 | 317.83 |
| Density (g/cm³) | 5.51 | 0.28 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.67 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 111.000 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)
0.258
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Ryu et al. 2019Instrument
18k Mosaic CCD camera
Publication
2019-10
Observation locale
Ground
Discovery cohort
Planets confirmed in 2019 at KMTNet (4 shown).
Host System: KMT-2018-BLG-1990L
Spectral Class
M-type red dwarf
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.094 M☉
Metallicity [Fe/H]
—
Similar Worlds
RR Cae b
Gas Giant · M-type red dwarf
Radius 13.00 R⊕ · 69.1 ly
GJ 676 A b
Gas Giant · M-type red dwarf
Radius 12.80 R⊕ · 52.3 ly
2M0437 b
Gas Giant · M-type red dwarf
Radius 13.00 R⊕ · 419.1 ly
TOI-756 c
Gas Giant · M-type red dwarf
Radius 13.00 R⊕ · 281.1 ly
HD 36384 b
Gas Giant · M-type red dwarf
Radius 12.70 R⊕ · 682.7 ly
GJ 463 b
Gas Giant · M-type red dwarf
Radius 13.10 R⊕ · 59.9 ly