Predictions for Grazing Occultation of ZC 850, 2007 Aug 8

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

Lunar Limb Profile for graze

Lunar Limb Profile