OGLE #7.

OGLE #7 -- possible binary microlens:

Moment of maximum brightness: JD 2449172.5

Time scale: 80 days

Mass ratio of the binary lens (q): 1.02

Separation (a): 1.14 Einstein Radius

Closest approach to the center of mass (b): 0.050 Einstein Radius

Position angle (Theta): 138.3 degrees

Contribution from lensed star at minimum (f): 58%

Normal brigteness (I-band): 18.1 mag

OGLE #7 microlensing event

45 by 45 arcsecs subframe centered on the OGLE #7 event taken at minimum brightness