SCOPE APERTURE ? 7
POWER ? 9
LIM MAG AT ZENITH ? 2
OBSERVER'S AGE ? 3
TELESCOPE TYPE (1-3) ? 2
CLEANLINESS (1-9) ? 8
COLOR INDEX OF STAR ? 4
ZENITH DISTANCE ? 56789
EXTINCTION COEFF ? 1.2
SEEING DISK RADIUS ? 2.3
EXPERIENCE (1-9) ? 3
VISUAL LIMITING MAGNITUDE =  61.4254 
