Confirmed Exoplanet Discovered 2014

OGLE-2008-BLG-092L b

A neptune-like orbiting the unknown OGLE-2008-BLG-092L, located approximately 26,418.6 light-years from Earth.

Key parameters at a glance

  • A radius of 8.74 Earth radii
  • A mass of 57.00 Earth masses
  • Surface gravity around 0.75 g
  • Semi-major axis 15.0000 AU
  • Distance from Earth 26,418.64 light-years
  • Earth Similarity Index 0.334
  • Travel time at Voyager 1 speed 465,892,620 years

OGLE-2008-BLG-092L b Planet Profile

Physical Specs

Radius
8.74 R⊕
Radius (Jupiter)
0.780 R♃
Mass
57.00 M⊕
Mass (Jupiter)
0.180 M♃
Density
0.47 g/cm³
Surface Gravity
0.75 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.334
HZ Position Unknown
Controversial No

Discovery

Year 2014
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#101of 574

top 17.4%

This planet

8.74R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

Metric Earth OGLE-2008-BLG-092L b Jupiter
Radius (R⊕)1.008.7411.21
Mass (M⊕)1.0057.00317.83
Density (g/cm³)5.510.471.33
Surface Gravity (g)1.000.752.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 57.000 M⊕ Direct mass measurement (not derived).

Percentile among Neptune-like cohort

Radius 8.740 R⊕ · percentile 82 / cohort 574
Mass 57.000 M⊕ · percentile 76 / cohort 574
Distance 8,100.00 pc · percentile 99 / cohort 572
ESI 0.334 · percentile 59 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
15.0000 AU
Eccentricity
Inclination
°

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.334

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Poleski et al. 2014

Instrument

OGLE CCD Array

Publication

2014-11

Observation locale

Ground

Host System: OGLE-2008-BLG-092L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.710 M☉

Metallicity [Fe/H]

Distance
8,100.00 parsec
Light-years 26,418.64 ly
V-band magnitude
mag
Voyager-speed travel 465,892,620 yr

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