Grazing Occultation of     536pB7      Magnitude 5.5 [Red = 5.5]   
   R536 = Celaeno = 16 Tauri
Date: 2026 Jan 27 21h  4m,  to  2026 Jan 27 21h 10m

Nominal site altitude 10m

E. Longit.   Latitude       U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '   "    h  m  s   Alt Alt Az          o     o      o
-  7  0  0   57 22 11.3  21  3 57       54 212  0.72 164.9 177.33   4.21S
-  6 45  0   57 23 12.9  21  4 16       54 212  0.72 165.0 177.38   4.16S
-  6 30  0   57 24 12.4  21  4 34       54 212  0.73 165.0 177.42   4.11S
-  6 15  0   57 25 10.1  21  4 53       54 213  0.73 165.1 177.47   4.07S
-  6  0  0   57 26  5.7  21  5 12       54 213  0.73 165.1 177.52   4.02S
-  5 45  0   57 26 59.4  21  5 30       54 214  0.73 165.2 177.57   3.97S
-  5 30  0   57 27 51.2  21  5 49       54 214  0.74 165.2 177.61   3.93S
-  5 15  0   57 28 40.9  21  6  7       53 215  0.74 165.3 177.66   3.88S
-  5  0  0   57 29 28.8  21  6 26       53 215  0.74 165.3 177.71   3.83S
-  4 45  0   57 30 14.7  21  6 44       53 216  0.75 165.4 177.75   3.79S
-  4 30  0   57 30 58.7  21  7  3       53 216  0.75 165.4 177.80   3.74S
-  4 15  0   57 31 40.7  21  7 21       53 217  0.75 165.4 177.84   3.69S
-  4  0  0   57 32 20.9  21  7 39       53 217  0.76 165.5 177.89   3.65S
-  3 45  0   57 32 59.1  21  7 57       53 218  0.76 165.5 177.94   3.60S
-  3 30  0   57 33 35.4  21  8 15       53 218  0.76 165.6 177.98   3.55S
-  3 15  0   57 34  9.8  21  8 34       53 218  0.77 165.6 178.03   3.51S
-  3  0  0   57 34 42.3  21  8 52       52 219  0.77 165.7 178.07   3.46S
-  2 45  0   57 35 12.9  21  9 10       52 219  0.77 165.7 178.12   3.42S
-  2 30  0   57 35 41.6  21  9 28       52 220  0.78 165.8 178.17   3.37S
-  2 15  0   57 36  8.4  21  9 46       52 220  0.78 165.8 178.21   3.33S
-  2  0  0   57 36 33.3  21 10  3       52 221  0.78 165.9 178.26   3.28S

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.

536 is triple: 
  AB 5.4 13.2 89" 264.5 (HL    6) Graze path of B approximately 31.3 km south, and 188.2 secs earlier compared to A
  - refer to graze profile for exact distances
  AC 5.4 11.5 218" 196.1 (HL    6) Graze path of C approximately 418.6 km north, and 239.0 secs earlier compared to A
  - refer to graze profile for exact distances

    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long -2.38   Lat -6.15
                            P +178.03     D -5.97
      Illumination of moon  69%+
        Elongation of Moon  112
    Vertical Profile Scale  approx. 2.15 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.64 deg/min


At longitude -4.50:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
    -0.3      2.9   4.3   5.1   5.6   5.9   6.1   6.3
     1.7      4.5   5.9   6.7   7.2   7.5   7.8   8.0
     3.7      4.8   6.3   7.1   7.6   7.9   8.2   8.4
     5.7      5.5   6.9   7.7   8.2   8.6   8.9   9.0
     7.7      5.7   7.1   8.0   8.5   8.8   9.1   9.3

------------------------------------------------------------------------------
Double star catalogue details
WDS entries 
 
  RA  Dec Name          Y1   Y2     N  PA  PA   Sep   Sep  M1    M2 
03448+2417HL    6AB    1886 2011    5 260 264  86.7  88.4  5.44 13.24           +020-045 -007+003 +23  505 N    034448.21+241722.0 
03448+2417HL    6AC    1886 2011    6 195 196 217.9 217.6  5.44 11.49           +020-045 +020-047          N    034448.21+241722.0 
 
------------------------------------------------ 
Interferometric catalogue entries 
 
034448.21+241722.0  Pleiades H 117            HL    6A                  HD  23288    HIP  17489         03448+2417 N   
    Date       PA              Sep                  M1             M2 
  1975.7159      .      .   <  0.033      .          .      .       .      .       517  20   3.8   1  McA1978c Sc      
  1975.9590      .      .   <  0.033      .          .      .       .      .       517  20   3.8   1  McA1978c Sc      
  1976.8600      .      .   <  0.035      .          .      .       .      .       552  20   3.8   1  McA1978c Sc      
  1976.9228      .      .   <  0.035      .          .      .       .      .       552  20   3.8   1  McA1978c Sc      
  1977.742       .      .   <  0.035      .          .      .       .      .       552  20   3.8   1  Hrt1984  Sc      
  1979.771       .      .   <  0.030      .          .      .       .      .       470       3.8   1  Hrt1984  Sc      
  1980.718       .      .   <  0.030      .          .      .       .      .       470       3.8   1  Hrt1984  Sc      
  1981.6903      .      .   <  0.025      .          .      .       .      .       550    ?  6.0   1  Bag1984b S       
  1987.7627      .      .   <  0.035      .          .      .       .      .       549  22   3.8   1  Msn1993b Sc      
  1991.25        .      .   <  0.1        .         5.45    .       .      .       511 222   0.3   1  HIP1997e Hh      
  1991.9045      .      .   <  0.035      .          .      .       .      .       549  22   3.8   1  Msn1993b Sc      
  2002.093       .      .   <  0.05       .         5.43   0.03     .      .       798 155   3.6   1  DRs2011  A       
  2005.8630      .      .   <  0.036      .          .      .       .      .       550  24   3.8   1  Msn2009  Su      
 

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
Edinburgh                          -3.2   56.0   174km   21  8 37.2
IoM_500Km                          -4.5   54.2   371km   21  7  2.5

