Astronomy:MACHO-98-BLG-35

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Short description: Historic gravitational microlensing event located in Sagittarius


MACHO-98-BLG-35
Observation data
Equinox J2000.0]] (ICRS)
Constellation Sagittarius
Right ascension  18h 17m 16.2s
Declination −22° 01′ 18″
Apparent magnitude (V) 20.7
Other designations
none

MACHO-98-BLG-35 was a gravitational microlensing event that occurred in July 1998 in the constellation Sagittarius. The red dwarf star causing the lens may have a planet, according to one study.[1]

Planet

The MACHO-98-BLG-35 planetary system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b (unconfirmed) 1 MJ 1

References

  1. Rhie, S. H.; Bennett, D. P.; Becker, A. C.; Peterson, B. A.; Fragile, P. C.; Johnson, B. R.; Quinn, J. L.; Crouch, A. et al. (2000). "On Planetary Companions to the MACHO 98‐BLG‐35 Microlens Star". The Astrophysical Journal 533 (1): 378–391. doi:10.1086/308634. Bibcode2000ApJ...533..378R.