Predictions for Grazing Occultation of ZC 1117, 2009 Feb 7

Grazing Occultation of    1117cG8      Magnitude 5.0 [Red = 4.6]   
   R1117 = 57 Geminorum
Date: 2009 Feb 07 11h 14m,  to  2009 Feb 07 11h 19m

Nominal site altitude 100m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 174  0  0  -39 11 36  11 14 22       25 351  2.11  21.2  14.44   8.32N
 174 10  0  -39 18 57  11 14 40       25 350  2.12  21.2  14.45   8.34N
 174 20  0  -39 26 19  11 14 57       25 350  2.14  21.2  14.47   8.36N
 174 30  0  -39 33 44  11 15 14       25 350  2.15  21.2  14.49   8.37N
 174 40  0  -39 41  9  11 15 32       25 350  2.17  21.2  14.50   8.39N
 174 50  1  -39 48 37  11 15 49       25 350  2.18  21.3  14.52   8.40N
 175  0  1  -39 56  5  11 16  5       24 349  2.20  21.3  14.53   8.42N
 175 10  1  -40  3 35  11 16 22       24 349  2.22  21.3  14.55   8.43N
 175 20  1  -40 11  6  11 16 39       24 349  2.23  21.3  14.56   8.45N
 175 30  1  -40 18 39  11 16 56       24 349  2.25  21.3  14.57   8.46N
 175 40  1  -40 26 13  11 17 12       24 348  2.26  21.3  14.59   8.47N
 175 50  1  -40 33 48  11 17 28       24 348  2.28  21.3  14.60   8.49N
 176  0  1  -40 41 24  11 17 44       24 348  2.30  21.4  14.61   8.50N
 176 10  2  -40 49  2  11 18  1       23 348  2.32  21.4  14.62   8.51N
 176 20  2  -40 56 40  11 18 17       23 348  2.34  21.4  14.63   8.52N
 176 30  2  -41  4 20  11 18 32       23 347  2.35  21.4  14.64   8.53N
 176 40  2  -41 12  2  11 18 48       23 347  2.37  21.4  14.65   8.54N
 176 50  2  -41 19 44  11 19  4       23 347  2.39  21.4  14.66   8.55N

Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.

Projected diameter of star  5 meters

      1117 is double: AB  5.9  5.9 0.10"  90.0

                Librations  Long -0.44   Lat -3.23
                            P +14.62     D +3.27
      Illumination of moon  93%+
        Elongation of Moon  150
    Vertical Profile Scale  3.43 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.51 deg/min


At longitude 175.50:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     4.5      2.3   3.6   4.3   4.7   4.9   5.1   5.2
     6.5      3.2   4.6   5.2   5.7   5.9   6.1   6.2
     8.5      4.2   5.6   6.3   6.7   7.0   7.1   7.3
    10.5      4.2   5.6   6.3   6.7   7.0   7.2   7.3
    12.5      4.2   5.6   6.3   6.7   7.0   7.2   7.3

Lunar Limb Profile