Key parameters at a glance
- A radius of 1.62 Earth radii
- A mass of 3.27 Earth masses
- Surface gravity around 1.25 g
- Semi-major axis 3.9130 AU
- Distance from Earth 15,345.64 light-years
- Earth Similarity Index 0.864
- Travel time at Voyager 1 speed 270,620,343 years
OGLE-2017-BLG-0173L b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#532of 1176
top 45.2%
This planet
1.62R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | OGLE-2017-BLG-0173L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.62 | 11.21 |
| Mass (M⊕) | 1.00 | 3.27 | 317.83 |
| Density (g/cm³) | 5.51 | 4.23 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.25 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 3.269 M⊕ | Direct mass measurement (not derived). |
Percentile among Super-Earth 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)
0.864
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Hwang et al. 2018Instrument
OGLE CCD Array
Publication
2018-01
Observation locale
Ground
Discovery cohort
Planets confirmed in 2018 at OGLE (10 shown).
Host System: OGLE-2017-BLG-0173L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.396 M☉
Metallicity [Fe/H]
—
Similar Worlds
MOA-2013-BLG-605L b
Super-Earth · Unknown
Radius 1.62 R⊕ · 2,772.3 ly
KMT-2017-BLG-1194L b
Super-Earth · Unknown
Radius 1.70 R⊕ · 13,829.0 ly
PSR B1257+12 d
Super-Earth · Unknown
Radius 1.80 R⊕ · 1,956.9 ly
KMT-2023-BLG-1866L b
Super-Earth · Unknown
Radius 1.43 R⊕ · 20,254.3 ly
OGLE-2018-BLG-0677L b
Super-Earth · Unknown
Radius 1.82 R⊕ · 24,722.6 ly
OGLE-2019-BLG-0960L b
Super-Earth · Unknown
Radius 1.39 R⊕ · 3,196.3 ly