OGLE-2005-BLG-071L
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| Observation data Epoch J2000.0 |
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|---|---|
| Constellation (pronunciation) |
Scorpius |
| Right ascension | 17h 50m 09s |
| Declination | -34º 40' 23″ |
| Apparent magnitude (V) | 19.5 |
| Distance | approx. 9500 ly (approx. 2900 pc) |
| Spectral type | M? |
| Other designations | |
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EWS 2005-BLG-071L
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OGLE-2005-BLG-071L is a distant, magnitude 19.5 star located in the constellation Scorpius, approximately 9500 light years away from the Solar System. The star is probably a red dwarf, meaning it would be significantly cooler and less massive than the Sun.
[edit] OGLE-2005-BLG-071Lb
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 1.8 AU |
| Orbital period | (P) | 2900 d |
| Angular distance | (θ) | 0.621 mas |
| Physical characteristics | ||
| Mass | (m) | 0.9 MJ |
| Discovery information | ||
| Discovery date | 2005 | |
| Discoverer(s) | Udalski et al. | |
| Detection method | Gravitational Microlensing | |
| Discovery status | Published | |
OGLE-2005-BLG-071Lb is an planet discovered by the Optical Gravitational Lensing Experiment (OGLE) and others in 2005, using gravitational microlensing.
The planet’s mass is 90% that of Jupiter, orbiting at 1.8 AU from the red dwarf star, taking 2900 days or 7.9 years. Its high mass indicates the planet is a gas giant like the outer planets of our solar system, with no solid surface. The low bolometric luminosity of the parent red dwarf (0.0014 solar) makes the planet’s temperature about as cold as Pluto, despite its close distance (1.8 AU) from the star.
[edit] External links
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