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Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Sagittarius
Right ascension 18h 17m 16.2s
Declination −22° 01′ 18″
Apparent magnitude (V) 20.7
Other designations

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]


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


  1. ^ Rhie, S. H.; Bennett, D. P.; Becker, A. C.; Peterson, B. A.; Fragile, P. C.; Johnson, B. R.; Quinn, J. L.; Crouch, A.; Gray, J.; King, L.; Messenger, B.; Thomson, S.; Bond, I. A.; Abe, F.; Carter, B. S.; Dodd, R. J.; Hearnshaw, J. B.; Honda, M.; Jugaku, J.; Kabe, S.; Kilmartin, P. M.; Koribalski, B. S.; Masuda, K.; Matsubara, Y.; Muraki, Y.; Nakamura, T.; Nankivell, G. R.; Noda, S.; Rattenbury, N. J.; et al. (2000). "On Planetary Companions to the MACHO 98‐BLG‐35 Microlens Star". The Astrophysical Journal. 533: 378. arXiv:astro-ph/9905151Freely accessible. Bibcode:2000ApJ...533..378R. doi:10.1086/308634.