Predictions for Grazing Occultation of ZC 391, 2014 May 26

Graze profile
Grazing Occultation of     391DF7      Magnitude 7.3 [Red = 6.6]   
Date: 2014 May 26 18h  6m,  to  2014 May 26 18h  9m

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
 167  0  0  -36 41 29  18  5 45        1  71 55.77 340.8   0.04  -0.55N
 167 30  0  -36 33  3  18  5 49        1  70 39.17 340.7 359.98  -0.49N
 168  0  0  -36 24 31  18  5 52        2  70 30.14 340.7 359.91  -0.42N
 168 30  0  -36 15 54  18  5 56        2  70 24.46 340.6 359.84  -0.35N
 169  0  0  -36  7 12  18  6  1        3  69 20.57 340.6 359.79  -0.30N
 169 30  0  -35 58 24  18  6  5        3  69 17.73 340.5 359.72  -0.23N
 170  0  0  -35 49 31  18  6 11        4  69 15.56 340.4 359.65  -0.16N
 170 30  0  -35 40 32  18  6 16        4  68 13.86 340.4 359.59  -0.10N
 171  0  0  -35 31 27  18  6 23        5  68 12.48 340.3 359.52  -0.03N
 171 30  0  -35 22 17  18  6 29        5  68 11.34 340.2 359.45   0.04N
 172  0  0  -35 13  1  18  6 37        5  67 10.39 340.2 359.38   0.11N
 172 30  0  -35  3 40  18  6 44        6  67  9.58 340.1 359.31   0.18N
 173  0  0  -34 54 13  18  6 52        6  67  8.88 340.0 359.24   0.25N
 173 30  0  -34 44 39  18  7  1        7  67  8.27 339.9 359.17   0.32N
 174  0  0  -34 35  1  18  7 10        7  66  7.74 339.9 359.10   0.39N
 174 30  0  -34 25 16  18  7 20        8  66  7.27 339.8 359.03   0.46N
 175  0  0  -34 15 25  18  7 30        8  66  6.84 339.7 358.96   0.53N
 175 30  0  -34  5 28  18  7 41        9  65  6.47 339.7 358.89   0.60N
 176  0  0  -33 55 26  18  7 52        9  65  6.12 339.6 358.82   0.67N
 176 30  0  -33 45 17  18  8  4       10  65  5.81 339.5 358.75   0.74N
 177  0  0  -33 35  2  18  8 17  -12  10  64  5.53 339.4 358.68   0.81N
 177 30  0  -33 24 41  18  8 30  -11  11  64  5.27 339.4 358.60   0.89N
 178  0  0  -33 14 14  18  8 44  -11  11  64  5.03 339.3 358.53   0.96N
 178 30  0  -33  3 41  18  8 58  -10  12  63  4.81 339.2 358.46   1.03N
 179  0  0  -32 53  2  18  9 13  -10  12  63  4.61 339.2 358.39   1.10N

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  2 meters  [Estimated]

391 is double: 
  AB 7.4 9.6 6.6"  73.0 (STF 287) Graze path of B 0.70 km north, and 13.2 secs later compared to A

    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long +5.84   Lat +1.28
                            P +359.35     D -1.09
      Illumination of moon  4%-
        Elongation of Moon  23
    Vertical Profile Scale  2.07 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.84 deg/min


At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
    -3.8      5.8   7.2   7.9   8.4   8.8   9.1   9.3
    -1.8      6.3   7.8   8.6   9.1   9.5   9.8  10.1
     0.2      6.5   7.9   8.8   9.3   9.7  10.0  10.3
     2.2      6.5   8.0   8.8   9.3   9.8  10.1  10.3
     4.2      6.5   8.0   8.8   9.4   9.8  10.1  10.3

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Double star catalogue details
WDS entries 
 
  RA  Dec Name          Y1   Y2     N  PA  PA   Sep   Sep  M1    M2 
02390+1452STF 287      1830 2007   33  74  73   6.6   6.6  7.36  9.61 G5        +023-012 +021-012 +14  439 NVD  023859.78+145137.6 
 
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Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
Auckland                          174.8  -36.9   264km   18  7 26

 

Lunar Limb Profile

Lunar Limb Profile