Predictions for Grazing Occultation of ZC 648, 2015 Aug 8

Graze profile
Grazing Occultation of     648SG8      Magnitude 3.8 [Red = 3.3]  s
   R648 = Hyadum II = delta 1 Tauri
Date: 2015 Aug 08 16h 49m,  to  2015 Aug 08 16h 54m

Nominal site altitude 50m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 139  0  0  -33  2 55  16 48 44        0  69 99.00 345.5 355.50   3.55N
 139 30  0  -32 53 10  16 48 47        1  69 83.36 345.4 355.44   3.61N
 140  0  0  -32 43 19  16 48 49        1  68 49.93 345.4 355.39   3.66N
 140 30  0  -32 33 23  16 48 53        2  68 35.58 345.3 355.34   3.71N
 141  0  0  -32 23 22  16 48 56        2  68 27.59 345.3 355.29   3.76N
 141 30  0  -32 13 17  16 49  0        3  67 22.51 345.2 355.24   3.81N
 142  0  0  -32  3  7  16 49  5        3  67 18.99 345.2 355.19   3.86N
 142 30  0  -31 52 52  16 49  9        3  67 16.41 345.1 355.14   3.91N
 143  0  0  -31 42 32  16 49 15        4  67 14.43 345.1 355.08   3.97N
 143 30  0  -31 32  8  16 49 21        4  66 12.87 345.0 355.03   4.02N
 144  0  0  -31 21 39  16 49 27        5  66 11.61 345.0 354.98   4.07N
 144 30  0  -31 11  6  16 49 34        5  66 10.56 344.9 354.93   4.12N
 145  0  0  -31  0 29  16 49 42        6  65  9.68 344.9 354.88   4.17N
 145 30  0  -30 49 46  16 49 50        6  65  8.93 344.8 354.82   4.23N
 146  0  0  -30 39  0  16 49 58        7  65  8.29 344.8 354.77   4.28N
 146 30  0  -30 28  9  16 50  7        7  65  7.72 344.7 354.72   4.33N
 147  0  0  -30 17 13  16 50 17        8  64  7.23 344.6 354.67   4.38N
 147 30  0  -30  6 13  16 50 27        8  64  6.79 344.6 354.61   4.43N
 148  0  0  -29 55  8  16 50 38        9  64  6.40 344.5 354.56   4.49N
 148 30  0  -29 43 59  16 50 50        9  64  6.04 344.5 354.51   4.54N
 149  0  0  -29 32 45  16 51  2       10  63  5.73 344.4 354.46   4.59N
 149 30  0  -29 21 27  16 51 15       10  63  5.44 344.4 354.41   4.64N
 150  0  0  -29 10  4  16 51 28       11  63  5.17 344.3 354.36   4.69N
 150 30  0  -28 58 37  16 51 42       11  62  4.93 344.3 354.30   4.74N
 151  0  0  -28 47  5  16 51 57       12  62  4.71 344.2 354.25   4.80N
 151 30  0  -28 35 29  16 52 12       13  62  4.51 344.2 354.20   4.85N
 152  0  0  -28 23 49  16 52 28       13  62  4.32 344.1 354.15   4.90N
 152 30  0  -28 12  4  16 52 45       14  61  4.14 344.1 354.10   4.95N
 153  0  0  -28  0 14  16 53  2       14  61  3.98 344.0 354.05   5.00N
 153 30  0  -27 48 21  16 53 20       15  61  3.82 344.0 354.00   5.05N
 154  0  0  -27 36 23  16 53 39       15  60  3.68 343.9 353.95   5.10N
 154 30  0  -27 24 20  16 53 59       16  60  3.55 343.9 353.90   5.14N
 155  0  0  -27 12 13  16 54 19       16  60  3.42 343.8 353.86   5.19N

Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level. The path
is adjusted for the effects of refraction at low moon altitudes.

Projected diameter of star  5 meters  [CHARM/CADARS, 13 measures]

648 is variable: 
       648 = NSV 1582, 3.72 to 3.77, V

648 is quadruple: 
  Aa,Ac 3.8 12.9      350.0 (OCC 255) Graze path of Ac 0.00 km south, and 0.0 secs later compared to Aa
  Aa,Ab 3.8      0.68"   8.2 (CHR 262) Graze path of Ab 1.32 km south, and 0.5 secs later compared to Aa
  AB 3.8 12.6 112" 335.7 (BUP  55) Graze path of B 235.32 km south, and 35.4 secs earlier compared to A

    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long +6.98   Lat +5.61
                            P +355.33     D -5.97
      Illumination of moon  32%-
        Elongation of Moon  69
    Vertical Profile Scale  2.10 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.80 deg/min


At longitude 147.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     0.4      3.7   5.0   5.6   6.0   6.2   6.4   6.5
     2.4      3.8   5.1   5.7   6.1   6.3   6.4   6.5
     4.4      3.8   5.2   5.8   6.2   6.4   6.5   6.6
     6.4      4.6   6.0   6.7   7.1   7.4   7.6   7.7
     8.4      4.7   6.1   6.8   7.2   7.5   7.7   7.8

------------------------------------------------------------------------------

Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
AU Mid                            143.0  -30.6   114km   16 49 15
Brisbane                          153.1  -27.5    52km   16 53  4
Bundaberg                         152.3  -24.8   353km   16 52 39
Pt Macquarie                      152.8  -31.4   335km   16 52 56

 

Lunar Limb Profile

Lunar Limb Profile