tau Scorpii Graze

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All times UT unless otherwise noted

March 11th Graze of tau Scorpii

 
 
 
 
 
Grazing Occultation of    2383  B0      Magnitude   2.8 
 2383 = tau Scorpii                           

Date   2007 March 11    (Sunday)     Nominal site altitude  28m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    WA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
-101  0  0   41 36 26   8  4 18        1 130 74.58 200.0 192.14  10.93S
-100  0  0   40 58 52   8  4 27        2 131 32.42 200.2 192.30  11.08S
- 99  0  0   40 20 47   8  4 38        3 131 20.58 200.3 192.45  11.24S
- 98  0  0   39 42 10   8  4 52        4 132 14.99 200.5 192.61  11.40S
- 97  0  0   39  3  1   8  5  9        5 133 11.74 200.6 192.76  11.55S
- 96  0  0   38 23 22   8  5 29        6 133  9.62 200.8 192.92  11.70S
- 95  0  0   37 43 11   8  5 53        7 134  8.12 200.9 193.07  11.85S
- 94  0  0   37  2 30   8  6 20        8 135  7.00 201.1 193.21  12.00S
- 93  0  0   36 21 19   8  6 50        9 135  6.14 201.2 193.36  12.14S
- 92  0  0   35 39 39   8  7 24       10 136  5.45 201.4 193.50  12.28S
- 91  0  0   34 57 31   8  8  2       12 137  4.89 201.5 193.63  12.42S
- 90  0  0   34 14 54   8  8 44       13 138  4.43 201.6 193.77  12.55S
- 89  0  0   33 31 52   8  9 31       14 138  4.03 201.7 193.89  12.68S
- 88  0  0   32 48 24   8 10 21       15 139  3.70 201.9 194.01  12.80S
- 87  0  0   32  4 32   8 11 16       16 140  3.40 202.0 194.12  12.91S
- 86  0  0   31 20 18   8 12 16       18 141  3.15 202.1 194.22  13.01S
- 85  0  0   30 35 43   8 13 21       19 141  2.92 202.2 194.32  13.10S
- 84  0  0   29 50 51   8 14 31       20 142  2.72 202.3 194.40  13.19S
- 83  0  0   29  5 43   8 15 45       21 143  2.55 202.3 194.47  13.26S
- 82  0  0   28 20 22   8 17  5       23 144  2.38 202.4 194.53  13.31S
- 81 30  0   27 57 38   8 17 47       23 144  2.31 202.4 194.55  13.34S

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

                Librations  Long -5.90   Lat +7.41
                            P +193.8     D +8.9
      Illumination of moon  58%-
        Elongation of Moon  99
    Vertical Profile Scale  2.44 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.38 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
     9.3      5.4   6.8   7.6   8.0   8.3   8.5   8.7
    11.3      5.4   6.8   7.6   8.0   8.3   8.6   8.7
    13.3      5.4   6.8   7.6   8.1   8.4   8.6   8.7
    15.3      5.4   6.9   7.6   8.1   8.4   8.6   8.7
    17.3      5.4   6.9   7.6   8.1   8.4   8.6   8.8
 

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