Extrasolar planet | List of extrasolar planets | |
---|---|---|
Parent star | ||
Star | OGLE-2005-BLG-071L | |
Constellation | Scorpius | |
Right ascension | (α) | 17h 50m 09s |
Declination | (δ) | –34° 40′ 23″ |
Distance | approx. 11000 ly (approx. 3300 pc) |
|
Spectral type | M? | |
Observed separation | ||
Projected separation | (d) | 3.6 ± 0.2 or 2.1 ± 0.1 AU |
Physical characteristics | ||
Mass | (m) | 3.8 +0.3 −0.4 or 3.4 ± 0.3 MJ |
Discovery information | ||
Discovery date | 27 May 2005 | |
Discoverer(s) | Udalski et al. | |
Detection method | Gravitational microlensing | |
Discovery status | Published | |
Other designations | ||
EWS 2005-BUL-071Lb, EWS 2005-BLG-071Lb
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Database references | ||
Extrasolar Planets Encyclopaedia |
data | |
SIMBAD | data |
OGLE-2005-BLG-071Lb is an planet discovered by the Optical Gravitational Lensing Experiment (OGLE) and others in 2005, using gravitational microlensing.[1] According to the best fit model, it has about 3.5 times the mass of Jupiter and a projected separation of 3.6 astronomical units from the star. This would result in an effective temperature around 50 K, similar to that of Neptune. However, an alternative model which gives a slightly lower mass of 3.3 times that of Jupiter and a projected separation of 2.1 AU is only slightly less likely. It may be the most massive planet currently known around a red dwarf star (though only lower limits are known for those planets detected by the radial velocity method).[2]