Grazing Occultation of 850 cB2 Magnitude 6.0v Date 2007 August 8 (Wednesday) Nominal site altitude 0m E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA o ' " o ' " h m s Alt Alt Az o o o 113 0 0 -33 1 34 20 38 54 2 53 23.73 348.5 351.20 14.11N 113 10 0 -32 55 24 20 38 55 3 52 22.10 348.5 351.19 14.12N 113 20 0 -32 49 12 20 38 57 3 52 20.67 348.5 351.17 14.14N 113 30 0 -32 43 1 20 38 58 3 52 19.42 348.5 351.16 14.15N 113 40 0 -32 36 49 20 39 0 3 52 18.31 348.5 351.15 14.16N 113 50 0 -32 30 37 20 39 2 3 52 17.31 348.5 351.13 14.18N 114 0 0 -32 24 24 20 39 4 3 52 16.42 348.4 351.12 14.19N 114 10 0 -32 18 11 20 39 6 4 52 15.61 348.4 351.11 14.20N 114 20 0 -32 11 58 20 39 8 4 52 14.88 348.4 351.09 14.21N 114 30 0 -32 5 44 20 39 10 4 52 14.21 348.4 351.08 14.23N 114 40 0 -31 59 30 20 39 12 4 52 13.59 348.4 351.07 14.24N 114 50 0 -31 53 16 20 39 14 4 51 13.03 348.4 351.06 14.25N 115 0 0 -31 47 1 20 39 16 5 51 12.51 348.4 351.05 14.26N 115 10 0 -31 40 46 20 39 19 5 51 12.03 348.4 351.03 14.27N 115 20 0 -31 34 31 20 39 21 5 51 11.58 348.3 351.02 14.29N 115 30 0 -31 28 15 20 39 24 5 51 11.16 348.3 351.01 14.30N 115 40 0 -31 21 59 20 39 27 5 51 10.77 348.3 351.00 14.31N 115 50 0 -31 15 42 20 39 29 5 51 10.41 348.3 350.99 14.32N 116 0 0 -31 9 26 20 39 32 6 51 10.07 348.3 350.98 14.33N 116 10 0 -31 3 9 20 39 35 6 51 9.75 348.3 350.96 14.34N 116 20 0 -30 56 51 20 39 38 6 51 9.45 348.3 350.95 14.35N 116 30 0 -30 50 34 20 39 41 6 51 9.17 348.3 350.94 14.37N 116 40 0 -30 44 16 20 39 44 6 50 8.90 348.3 350.93 14.38N 116 50 0 -30 37 57 20 39 48 7 50 8.64 348.2 350.92 14.39N 117 0 0 -30 31 39 20 39 51 7 50 8.40 348.2 350.91 14.40N 117 10 0 -30 25 20 20 39 54 7 50 8.18 348.2 350.90 14.41N 117 20 0 -30 19 1 20 39 58 7 50 7.96 348.2 350.89 14.42N 117 30 0 -30 12 41 20 40 1 7 50 7.76 348.2 350.88 14.43N 117 40 1 -30 6 22 20 40 5 8 50 7.56 348.2 350.87 14.44N 117 50 1 -30 0 2 20 40 9 8 50 7.37 348.2 350.86 14.45N 118 0 1 -29 53 42 20 40 13 8 50 7.19 348.2 350.85 14.46N Path coordinates are referred to WGS84 (as used by GPS). 850 is double : 6.2 8.2 0.000" 0.0 Graze Path of component #2 0.00km South, and 0.0 secs. later cf. primary. 850 = V0433 Aur, 6.02 to 6.06 Hp, Type LBV: Librations Long +4.91 Lat -7.06 P +350.3 D +6.4 Illumination of moon 18%- Elongation of Moon 51 Vertical Profile Scale 2.41 km/arcsec at mean distance of moon Horizontal Scale Factor 1.71 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 10.5 5.6 7.0 7.8 8.3 8.6 8.9 9.1 12.5 5.6 7.1 7.9 8.4 8.7 9.0 9.1 14.5 5.7 7.1 7.9 8.4 8.8 9.0 9.2 16.5 5.7 7.2 8.0 8.5 8.8 9.1 9.3 18.5 5.8 7.2 8.0 8.5 8.9 9.1 9.3