MOA-2007-BLG-400L

MOA-2007-BLG-400L
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Sagittarius
Right ascension 18h 09m 42s
Declination –29° 13′ 27″
Apparent magnitude (V) 22
Characteristics
Spectral type M3V?
Astrometry
Distance22472.1 ly
(6890 pc)
Details
Mass0.35 ± 0.15 M☉
Database references
SIMBADdata

MOA-2007-BLG-400L is a star located 22472.1 light-years (6890 parsecs) 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 M☉.

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.

The MOA-2007-BLG-400L system
Companion MassObserved separation
(AU)
b0.9 ± 0.4 MJ0.85 ± 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



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