Artist impression of OGLE-2007-BLG-368L b exoplanet
Confirmed Exoplanet Discovered 2009

OGLE-2007-BLG-368L b

A neptune-like orbiting the unknown OGLE-2007-BLG-368L, located approximately 19,243.2 light-years from Earth.

Image: Wikimedia Commons · GPL · This image was created with Celestia.

Key parameters at a glance

  • A radius of 4.72 Earth radii
  • A mass of 20.00 Earth masses
  • Surface gravity around 0.90 g
  • Semi-major axis 2.8000 AU
  • Distance from Earth 19,243.20 light-years
  • Earth Similarity Index 0.494
  • Travel time at Voyager 1 speed 339,353,884 years

Context from the literature

OGLE-2007-BLG-368Lb is an extrasolar planet located approximately 19,230 light-years away in the constellation of Scorpius, orbiting the star OGLE-2007-BLG-368L. This planet was detected on December 8, 2009 by the gravitational microlensing by Sumi. It has mass 6.94% of Jupiter and is located 3.3 AU from the star when observed. Based on those properties it would classify as a Cold Neptune. It is the second Cold Neptune to be observed, the first being OGLE-2005-BLG-169Lb. This planet is most likely be similar to Uranus and Neptune in the Solar System in terms of atmospheric and internal properties.

Excerpted from Wikipedia · full article

OGLE-2007-BLG-368L b Planet Profile

Physical Specs

Radius
4.72 R⊕
Radius (Jupiter)
0.421 R♃
Mass
20.00 M⊕
Mass (Jupiter)
0.060 M♃
Density
1.05 g/cm³
Surface Gravity
0.90 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.494
HZ Position Unknown
Controversial No

Discovery

Year 2009
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#426of 574

top 74.0%

This planet

4.72R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

TCP J05074264+2447555 b 4.72 R⊕ LTT 9779 b 4.72 R⊕ Kepler-318 b 4.71 R⊕
Metric Earth OGLE-2007-BLG-368L b Jupiter
Radius (R⊕)1.004.7211.21
Mass (M⊕)1.0020.00317.83
Density (g/cm³)5.511.051.33
Surface Gravity (g)1.000.902.53
Insolation (S⊕)1.00—0.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 20.000 M⊕ Direct mass measurement (not derived).

Percentile among Neptune-like cohort

Radius 4.720 R⊕ · percentile 25 / cohort 574
Mass 20.000 M⊕ · percentile 29 / cohort 574
Distance 5,900.00 pc · percentile 94 / cohort 572
ESI 0.494 · percentile 89 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period
— days
Semi-major axis
2.8000 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)

0.494

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Sumi et al. 2010

Instrument

OGLE CCD Array

Publication

2010-02

Observation locale

Ground

Host System: OGLE-2007-BLG-368L

Spectral Class

Unknown

Effective Temperature

—

Estimated Age

—

Stellar Radius

—

Stellar Mass

0.640 M☉

Metallicity [Fe/H]

—

Distance
5,900.00 parsec
Light-years 19,243.20 ly
V-band magnitude
17.71 mag
Voyager-speed travel 339,353,884 yr
Wikipedia → Image: Wikimedia Commons · This image was created with Celestia. · GPL

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Explore Related Categories

Neptune-like Planets Microlensing Discoveries OGLE Mission