OGLE-2003-BLG-235L

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OGLE-2003-BLG-235L/MOA 2003-BLG-53 or MOA 2003-BLG-53 is a planetary system 19,000 light years away, in the constellation of Sagittarius. It is composed of a red dwarf star orbited by a planet. The planet was identified through its gravitational lensing effect.

1 OGLE-2003-BLG-235L
2 OGLE-2003-BLG-235Lb
3 References
4 External links
5 See also

[edit] OGLE-2003-BLG-235L

**OGLE-2003-BLG-235L**
Observation data Equinox J2000.0
Constellation	Sagittarius
Right ascension	18^h 05^m 16.35^s
Declination	-28° 53' 42.0"
Distance	~19000 ly (~5828 pc)
Other designations
MOA 2003-BLG-53

OGLE-2003-BLG-235L (also known as MOA 2003-BLG-53) is the red dwarf. In 2004 an exoplanet was found orbiting OGLE-2003-BLG-235L. It took a while for the star to be optically identified, by the Hubble Space Telescope.

[edit] OGLE-2003-BLG-235Lb

**OGLE-2003-BLG-235Lb**
Microlensing parameters
Extrasolar planet		Lists of extrasolar planets
Observed separation	(d)	~3 AU
Mass ratio	(q)	0.0039⁺¹¹_-7
Impact parameter	(u₀)	0.133 R_Einstein
Einstein ring crossing time	(t_E)	61.5 d
Time of closest approach	(t₀)	2452848.06 JD
Position angle	(φ)	223.8°
Physical characteristics
Mass	(m)	2.7 M_J
Radius	(r)	? R_J
Density	(ρ)	? kg/m³
Temperature	(T)	? K
Discovery information
Discovery date		2004
Discoverer(s)		Bond et al.
Detection method		Gravitational microlensing
Discovery status		Published