Grazing Occultation of 2237 K3 Magnitude 5.0s 2237 = 42 Librae Date 2006 July 7 (Friday) 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 150 0 0 -25 30 47 11 38 49 76 273 0.24 22.0 9.81 12.90N 150 10 0 -25 33 16 11 39 21 76 273 0.25 21.9 9.71 12.81N 150 20 0 -25 35 43 11 39 53 76 273 0.25 21.8 9.62 12.71N 150 30 0 -25 38 7 11 40 25 75 273 0.26 21.7 9.52 12.61N 150 40 0 -25 40 29 11 40 57 75 273 0.26 21.6 9.42 12.51N 150 50 0 -25 42 48 11 41 29 75 273 0.27 21.5 9.33 12.42N 151 0 0 -25 45 5 11 42 1 75 273 0.27 21.4 9.23 12.32N 151 10 0 -25 47 20 11 42 32 74 273 0.28 21.3 9.13 12.22N 151 20 0 -25 49 32 11 43 4 74 273 0.28 21.2 9.03 12.12N 151 30 0 -25 51 41 11 43 35 74 273 0.29 21.1 8.94 12.03N 151 40 0 -25 53 49 11 44 7 74 273 0.29 21.0 8.84 11.93N 151 50 0 -25 55 54 11 44 38 73 273 0.30 20.9 8.74 11.83N 152 0 0 -25 57 56 11 45 9 73 273 0.30 20.8 8.65 11.74N 152 10 0 -25 59 56 11 45 40 73 273 0.31 20.7 8.55 11.64N 152 20 0 -26 1 54 11 46 11 73 273 0.31 20.6 8.45 11.55N 152 30 0 -26 3 49 11 46 42 72 273 0.32 20.5 8.36 11.45N 152 40 0 -26 5 42 11 47 13 72 273 0.32 20.4 8.26 11.35N 152 50 0 -26 7 33 11 47 43 72 272 0.33 20.4 8.17 11.26N 153 0 0 -26 9 21 11 48 14 71 272 0.34 20.3 8.07 11.16N 153 10 0 -26 11 7 11 48 44 71 272 0.34 20.2 7.98 11.07N 153 20 0 -26 12 51 11 49 14 71 272 0.35 20.1 7.88 10.97N 153 30 0 -26 14 32 11 49 45 71 272 0.35 20.0 7.79 10.88N 153 40 0 -26 16 12 11 50 15 70 272 0.36 19.9 7.69 10.78N 153 50 0 -26 17 48 11 50 45 70 272 0.36 19.8 7.60 10.69N Path coordinates are referred to WGS84 (as used by GPS). 2237 = NSV 20363, 4.94 to 5.02 V , Type C A S S I N I R E G I O N G R A Z E Librations Long -6.57 Lat +5.71 P +7.0 D -6.3 Illumination of moon 84%+ Elongation of Moon 133 Vertical Profile Scale 1.86 km/arcsec at mean distance of moon Horizontal Scale Factor 1.24 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 6.7 4.8 6.3 7.1 7.6 8.0 8.2 8.4 8.7 5.3 6.8 7.6 8.1 8.5 8.7 8.9 10.7 5.6 7.1 7.9 8.4 8.8 9.1 9.3 12.7 5.6 7.1 7.9 8.4 8.8 9.1 9.3 14.7 5.6 7.1 7.9 8.4 8.8 9.1 9.3