Height of observer in feet? 15000 Zenith dist. of occulting edge (deg)? 89 Aerosol extinction (mag/air mass)? 0.9 Occult bottom (B) or top (T) of Sun? B Time x y V mag. Color 0.00 0.70 0.30 13.5 Violet 0.11 0.70 0.30 13.9 Violet 0.22 0.70 0.30 14.3 Violet 0.33 0.69 0.31 14.9 Violet 0.44 0.67 0.33 15.6 Violet 0.55 0.61 0.39 16.7 Red 0.66 0.58 0.41 17.6 Red 0.76 0.48 0.51 19.1 Red 0.87 0.29 0.69 20.3 Orange 0.98 0.29 0.68 21.4 Orange 1.09 0.13 0.59 24.6 Yellow 1.20 0.02 0.51 25.8 Yellow 1.31 0.02 0.50 26.6 Yellow 1.42 0.04 0.44 28.0 Green 1.53 0.16 0.02 33.6 Blue 1.64 0.16 0.02 34.0 Blue 1.75 0.16 0.02 34.5 Blue 1.86 0.16 0.02 35.3 Blue 1.97 0.16 0.02 36.9 Blue