Confirmed Exoplanet Discovered 2008

OGLE-2006-BLG-109L b

A gas giant orbiting the unknown OGLE-2006-BLG-109L, located approximately 4,925.0 light-years from Earth.

Key parameters at a glance

  • A radius of 14.00 Earth radii
  • A mass of 231.00 Earth masses
  • Surface gravity around 1.18 g
  • An orbital period of 1,788.500 days
  • Semi-major axis 2.3000 AU
  • Equilibrium temperature 82 K (-191 °C)
  • Distance from Earth 4,924.96 light-years
  • Earth Similarity Index 0.125
  • Travel time at Voyager 1 speed 86,851,587 years

1 sibling around OGLE-2006-BLG-109L

OGLE-2006-BLG-109L b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
OGLE-2006-BLG-109L b this Gas Giant 14.00 231.00 1,788.500 82 2008
OGLE-2006-BLG-109L c Gas Giant 11.10 86.00 4,927.500 59 2008

OGLE-2006-BLG-109L b Planet Profile

Physical Specs

Radius
14.00 R⊕
Radius (Jupiter)
1.250 R♃
Mass
231.00 M⊕
Mass (Jupiter)
0.727 M♃
Density
0.46 g/cm³
Surface Gravity
1.18 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.125
HZ Position Unknown
Controversial No

Discovery

Year 2008
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#415of 1771

top 23.4%

This planet

14.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth OGLE-2006-BLG-109L b Jupiter
Radius (R⊕)1.0014.0011.21
Mass (M⊕)1.00231.00317.83
Density (g/cm³)5.510.461.33
Surface Gravity (g)1.001.182.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 231.000 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 14.000 R⊕ · percentile 74 / cohort 1771
Mass 231.000 M⊕ · percentile 24 / cohort 1747
Orbital period 1,788.50 d · percentile 83 / cohort 1533
Distance 1,510.00 pc · percentile 89 / cohort 1759
ESI 0.125 · percentile 33 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
1,788.500 days
Semi-major axis
2.3000 AU
Eccentricity
Inclination
°

Year Length

A year here lasts about 4.90 Earth years at a mean orbital distance of 2.3000 AU.

Eq. Temperature

82K

(-191 °C)

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.125

0 = alien, 1 = Earth-identical

Insufficient insolation data — any water would exist as deep ice.

Discovery Paper

Primary reference

Gaudi et al. 2008

Instrument

OGLE CCD Array

Publication

2008-00

Observation locale

Ground

Discovery cohort

Planets confirmed in 2008 at OGLE (2 shown).

Host System: OGLE-2006-BLG-109L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.510 M☉

Metallicity [Fe/H]

Distance
1,510.00 parsec
Light-years 4,924.96 ly
V-band magnitude
mag
Voyager-speed travel 86,851,587 yr

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