Grazing Occultation of 1233 SG8 Magnitude 5.7s 1233 = psi Cancri Date 2006 May 31 (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 143 0 0 -35 18 59 8 37 23 19 324 2.85 28.3 16.79 20.20N 143 10 0 -35 26 40 8 37 35 19 323 2.89 28.3 16.76 20.17N 143 20 0 -35 34 20 8 37 46 19 323 2.92 28.2 16.74 20.14N 143 30 0 -35 41 58 8 37 57 19 323 2.95 28.2 16.71 20.12N 143 40 0 -35 49 36 8 38 8 18 323 2.99 28.2 16.68 20.09N 143 50 0 -35 57 12 8 38 19 18 323 3.02 28.1 16.65 20.06N 144 0 0 -36 4 47 8 38 29 18 323 3.06 28.1 16.62 20.03N 144 10 0 -36 12 21 8 38 40 18 323 3.10 28.1 16.59 20.00N 144 20 0 -36 19 54 8 38 50 18 322 3.14 28.1 16.57 19.97N 144 30 0 -36 27 26 8 39 0 17 322 3.17 28.0 16.54 19.95N 144 40 0 -36 34 57 8 39 10 17 322 3.21 28.0 16.51 19.92N 144 50 0 -36 42 26 8 39 20 17 322 3.25 28.0 16.48 19.89N 145 0 0 -36 49 54 8 39 30 17 322 3.30 27.9 16.45 19.86N 145 10 0 -36 57 22 8 39 40 17 322 3.34 27.9 16.42 19.83N 145 20 0 -37 4 48 8 39 49 16 322 3.38 27.9 16.39 19.80N 145 30 0 -37 12 12 8 39 59 16 321 3.42 27.9 16.36 19.77N 145 40 0 -37 19 36 8 40 8 16 321 3.47 27.8 16.33 19.74N 145 50 0 -37 26 58 8 40 17 16 321 3.51 27.8 16.30 19.71N 146 0 0 -37 34 20 8 40 26 16 321 3.56 27.8 16.27 19.68N 146 10 0 -37 41 40 8 40 35 15 321 3.61 27.7 16.24 19.65N 146 20 0 -37 48 59 8 40 44 15 321 3.66 27.7 16.21 19.62N 146 30 0 -37 56 17 8 40 53 15 321 3.71 27.7 16.18 19.59N 146 40 0 -38 3 33 8 41 2 15 320 3.76 27.6 16.15 19.56N 146 50 0 -38 10 48 8 41 10 15 320 3.81 27.6 16.12 19.53N 147 0 0 -38 18 3 8 41 18 15 320 3.86 27.6 16.09 19.50N 147 10 0 -38 25 15 8 41 27 14 320 3.92 27.6 16.06 19.47N 147 20 0 -38 32 27 8 41 35 14 320 3.97 27.5 16.03 19.44N 147 30 0 -38 39 38 8 41 43 14 320 4.03 27.5 16.00 19.41N 147 40 1 -38 46 47 8 41 50 14 320 4.09 27.5 15.97 19.38N 147 50 1 -38 53 55 8 41 58 14 320 4.15 27.4 15.94 19.35N Path coordinates are referred to WGS84 (as used by GPS). 1233 is multiple : 6.6 6.6 0.100" 270.0 : 5.7 12.2 74" 297.0 : 5.8 11.7 92" 218.0 Graze Path of component #2 0.11km North, and 0.2 secs. earlier cf. primary. Graze Path of component #3 1.31km North, and 180.6 secs. earlier cf. primary. Graze Path of component #4 210.67km North, and 41.2 secs. earlier cf. primary. 1233 = NSV 17752, 5.73 +/- 0.00 V , Type VAR: Librations Long +3.70 Lat -6.43 P +15.6 D +7.5 Illumination of moon 18%+ Elongation of Moon 50 Vertical Profile Scale 2.40 km/arcsec at mean distance of moon Horizontal Scale Factor 1.56 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 15.3 6.0 7.5 8.3 8.8 9.1 9.4 9.6 17.3 6.1 7.5 8.3 8.8 9.2 9.5 9.7 19.3 6.1 7.6 8.4 8.9 9.2 9.5 9.7 21.3 6.1 7.6 8.4 8.9 9.3 9.5 9.7 23.3 6.2 7.6 8.4 9.0 9.3 9.6 9.8