MOA-2007-BLG-400L
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 18h 09m 42s |
| Declination | –29° 13′ 27″ |
| Characteristics | |
| Spectral type | M3V? |
| Astrometry | |
| Distance | 20000 ly (6000 pc) |
| Details | |
| Mass | 0.35 ± 0.15 M☉ |
| Database references | |
| SIMBAD | data |
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.
Planetary system
In September 2008, the discovery of an extrasolar planet was announced by the Microlensing Follow Up Network (μFUN) and the Microlensing Observations in Astrophysics (MOA) Collaboration. This planet was detected by the gravitational microlensing method based on an event recorded in September 2007.
| Companion | Mass | Observed separation (AU) |
| b | 0.9 ± 0.4 MJ | 0.85 ± 0.25 |
See also
References
- 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. S2CID 16658501.web preprint
External links
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