HR 2499 Binary Star with 0.3" Separation
UT 18DEC98, 60 sec. integration, 0.025"/Pixel, 4" X 4"

K Band (2.2 microns)

AO Loop Open
FWHM = 1.35"

AO Loop Closed
FWHM = 0.25" (Strehl = 0.026)

H Band (1.65 microns)

AO Loop Open
FWHM = 1.28"

AO Loop Closed
FWHM = 0.25" (Strehl = 0.031)

J Band (1.25 microns)

AO Loop Open
FWHM = 1.25"

AO Loop Closed
FWHM = 0.25" (Strehl = 0.018)