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: Anyway, using ridiculous IPv6 hacks I could probably have authentication without degrading the elegant simplicity of this.
gollark: Well, it might not only be on this port, actually?
gollark: Yes, but why *repeatedly*, why *only on this port*, and why `>`?
gollark: I mean, I'm fairly sure it's a bot, I just don't know what sort of bot would do this.
gollark: This is meant for allowing me to receive complaints from kit about irc.osmarks.net imploding or something.
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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