Epoch J2000.0 Equinox J2000.0
|Right ascension||18h 09m 42s|
|Declination||–29° 13′ 27″|
|Mass||0.35 ± 0.15 M☉|
MOA-2007-BLG-400L is a star located approximately 20000 light-years away in the constellation of Sagittarius. This star is presumed to be a red dwarf with a spectral type of M3V, based on its mass of 0.35 MS.
In September 2008, the discovery of an extrasolar planet was announced by the Microlensing Observations in Astrophysics (MOA) Collaboration. This planet was detected by the gravitational microlensing method based on an event recorded in September 2007. The Microlensing Follow Up Network (μFUN) has not yet positively identified the source star.
|b||0.9 ± 0.4 MJ||0.85 ± 0.25|
- Dong, Subo et al. (2009). "Microlensing Event MOA-2007-BLG-400: Exhuming the Buried Signature of a Cool, Jovian-Mass Planet" (abstract). The Astrophysical Journal 698 (2): 1826–1837. arXiv:0809.2997. Bibcode:2009ApJ...698.1826D. doi:10.1088/0004-637X/698/2/1826.web preprint
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