[Interpreting and using the prediction and profile information below]

Predictions for Grazing Occultation of ZC 552, 2005 Nov 16

Grazing Occultation of     552 SB7      Magnitude   2.8s
  552 = Alcyone = eta Tauri                   

Date   2005 November 16    (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
 145  0  0  -39  7 26  10 50 51        9  48  6.02 152.5 164.27  21.43S
 145 10  0  -39  1 22  10 50 54       10  48  5.91 152.5 164.25  21.41S
 145 20  0  -38 55 16  10 50 57       10  48  5.81 152.4 164.22  21.38S
 145 30  0  -38 49 10  10 50 59       10  48  5.71 152.4 164.19  21.35S
 145 40  0  -38 43  2  10 51  2       10  48  5.61 152.4 164.15  21.32S
 145 50  0  -38 36 53  10 51  5       10  48  5.51 152.3 164.12  21.29S
 146  0  0  -38 30 43  10 51  8       10  48  5.42 152.3 164.09  21.26S
 146 10  0  -38 24 32  10 51 11       11  47  5.33 152.3 164.06  21.23S
 146 20  0  -38 18 20  10 51 15       11  47  5.24 152.3 164.03  21.20S
 146 30  0  -38 12  7  10 51 18       11  47  5.15 152.2 164.00  21.17S
 146 40  0  -38  5 52  10 51 21       11  47  5.07 152.2 163.97  21.14S
 146 50  0  -37 59 37  10 51 25       11  47  4.99 152.2 163.94  21.11S
 147  0  0  -37 53 20  10 51 28       12  47  4.91 152.1 163.91  21.08S
 147 10  0  -37 47  2  10 51 32       12  47  4.84 152.1 163.88  21.05S
 147 20  0  -37 40 43  10 51 36       12  47  4.76 152.1 163.85  21.02S
 147 30  0  -37 34 23  10 51 39       12  46  4.69 152.0 163.81  20.98S
 147 40  0  -37 28  1  10 51 43       12  46  4.62 152.0 163.78  20.95S
 147 50  0  -37 21 39  10 51 47       12  46  4.55 152.0 163.75  20.92S
 148  0  0  -37 15 15  10 51 51       13  46  4.48 151.9 163.72  20.89S
 148 10  0  -37  8 50  10 51 55       13  46  4.42 151.9 163.69  20.86S
 148 20  0  -37  2 24  10 52  0       13  46  4.36 151.9 163.66  20.83S
 148 30  0  -36 55 57  10 52  4       13  46  4.29 151.9 163.63  20.80S
 148 40  0  -36 49 29  10 52  8       13  46  4.23 151.8 163.60  20.77S
 148 50  0  -36 42 59  10 52 13       13  46  4.17 151.8 163.57  20.74S
 149  0  0  -36 36 29  10 52 17       14  45  4.12 151.8 163.54  20.71S
 149 10  0  -36 29 57  10 52 22       14  45  4.06 151.7 163.51  20.68S
 149 20  0  -36 23 24  10 52 27       14  45  4.00 151.7 163.47  20.65S
 149 30  0  -36 16 50  10 52 32       14  45  3.95 151.7 163.44  20.62S
 149 40  1  -36 10 14  10 52 37       14  45  3.90 151.6 163.41  20.59S
 149 50  1  -36  3 38  10 52 42       15  45  3.85 151.6 163.38  20.56S
 150  0  1  -35 57  0  10 52 47       15  45  3.79 151.6 163.35  20.53S
 150 10  1  -35 50 21  10 52 52       15  45  3.75 151.5 163.32  20.50S
 150 20  1  -35 43 41  10 52 57       15  44  3.70 151.5 163.29  20.47S
 150 30  1  -35 37  0  10 53  3       15  44  3.65 151.5 163.26  20.44S
 150 40  1  -35 30 18  10 53  8       16  44  3.60 151.5 163.23  20.41S
 150 50  1  -35 23 34  10 53 14       16  44  3.56 151.4 163.20  20.38S

Path coordinates are referred to WGS84 (as used by GPS).

    552 is multiple :        1.5   0.031"  207.1 :   3.0  4.6   0.031"  207.1 :   2.8  6.2  117"  290.0
Graze Path of component #2  0.04km North, and 0.1 secs. earlier cf. primary.
Graze Path of component #3  0.04km North, and 0.1 secs. earlier cf. primary.
Graze Path of component #4  198.53km South, and 172.8 secs. earlier cf. primary.

    552 = NSV 15775,   2.87 +/- 0.00 V ,  Type VAR:

                Librations  Long +5.66   Lat -5.45
                            P +162.7     D -3.3
      Illumination of moon  100%-
        Elongation of Moon  173
    Vertical Profile Scale  2.26 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.65 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
    16.4      1.8   3.1   3.7   4.0   4.2   4.3   4.4
    18.4      1.8   3.1   3.7   4.0   4.2   4.3   4.4
    20.4      1.8   3.1   3.7   4.0   4.2   4.3   4.4
    22.4      1.9   3.2   3.8   4.1   4.3   4.4   4.5
    24.4      2.0   3.3   4.0   4.3   4.5   4.6   4.7

Lunar Limb Profile for graze near Melbourne

Lunar Limb Profile for graze near Canberra