MOA-2007-BLG-400L
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.
| 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 |
| Extrasolar Planets Encyclopaedia | data |
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 |
gollark: I'm encoding things with excessively low bitrate.
gollark: Wow, osmarks.tk osmarksproject 1906 is running slowly.
gollark: Imagine RPNCalc to:- x86- asm2bf- WASM
gollark: You should have swappable compile backends.
gollark: See, I'm currently using ffmpeg to work on osmarks.tk project 1906.
See also
- List of extrasolar planets
- MOA-2007-BLG-192L
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.web preprint
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