Beta Tauri Graze

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Spectacular

September 14th Beta Tauri Graze in California

McCracken Rd on I-5 Profile

Graze Prediction from WinOCCULT
Grazing Occultation of     810 SB7      Magnitude   1.7 
  810 = El Nath = beta Tauri                  

Date   2006 September 14    (Thursday)     Nominal site altitude  0m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    WA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
-125  0  0   36 39 34  13  1 21       73 112  0.31 349.8 353.25   6.99N
-124  0  0   36 55 24  13  3 22   -12 74 116  0.29 350.2 353.62   6.62N
-123  0  0   37 10 13  13  5 22   -10 75 119  0.27 350.6 354.00   6.25N
-122  0  0   37 24  3  13  7 22    -9 76 123  0.26 350.9 354.38   5.87N
-121 22 30   37 32 11  13  8 36    -8 76 126  0.25 351.2 354.61   5.63N
-121 15  0   37 33 46  13  8 51    -8 76 127  0.25 351.2 354.66   5.58N

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

    810 is triple :   2.6  2.6   0.100"  270.0 :   1.6        33"  239.0
Graze Path of component #2  0.03km South, and 0.3 secs. earlier cf. primary.
Graze Path of component #3  23.63km North, and 86.1 secs. earlier cf. primary.

                Librations  Long +7.91   Lat -6.66
                            P +353.7     D +6.2
      Illumination of moon  49%-
        Elongation of Moon  89
    Vertical Profile Scale  1.89 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.31 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
     1.6      5.1   6.5   7.3   7.9   8.3   8.5   8.7
     3.6      5.1   6.5   7.4   7.9   8.3   8.6   8.8
     5.6      5.9   7.4   8.2   8.8   9.2   9.5   9.7
     7.6      5.9   7.4   8.2   8.8   9.2   9.5   9.7
     9.6      5.9   7.4   8.2   8.8   9.2   9.5   9.7
BREIT IDEAS Results
PLACE NAME     BREIT IDEAS Observatory
ADDRESS        BETA TAURI GRAZE FROM WESTLEY, CA
E-MAIL ADDRESS breit_ideas@poyntsource.com
REPRESENTATIVE Derek C Breit
REPORTED TO    DR Mitsuru Soma - Interested Parties

TA  CAD  30.5  304.8  122 08 25.06 W  38 01 02.70 N    5  NAD1983
TB  RAM   5.0   24.8  122 08 25.06 W  38 01 02.70 N    5  NAD1983
TC  CAD  30.5  304.8  122 11 26.57 W  38 00 47.46 N  171  NAD1983
TD  CAD  30.5  304.8  122 08 26.18 W  38 01 03.77 N    5  NAD1983
TE  CAD  30.5  304.8  122 08 27.12 W  38 01 04.58 N    5  NAD1983
TF  CAD  30.5  304.8  122 07 56.58 W  37 59 58.38 N   23  NAD1983
TG  CAD  30.5  304.8  122 06 43.92 W  37 59 30.24 N   72  NAD1983
TH  CAD  30.5  304.8  121 57 16.56 W  37 29 37.32 N    3  NAD1983
TI  CAD  30.5  304.8  122 11 56.00 W  39 11 23.09 N   28  NAD1983
TJ  CAD  30.5  304.8  121 56 42.67 W  38 51 30.66 N   16  NAD1983
TK  CAD  30.5  304.8  121 55 46.74 W  38 32 28.02 N   49  NAD1983
TL  CAD  30.5  304.8  122 03 37.57 W  37 57 50.39 N   21  NAD1983
TM  CAD  30.5  304.8  122 00 54.00 W  38 38 58.12 N   65  NAD1983
TN  CAD  30.5  304.8  121 15 25.55 W  37 33 34.74 N   56  NAD1983

OA  Derek C Breit                        

012006091413080332 R    810           1V RE  0011   111    6                 NAA
    End of 8 frame disappearance
022006091413083519 R    810           2V RE  0011   111    6                 NAA
    Start of 16 frame reappearance
032006091413083969 R    810           1V RE  0011   111    6                 NAA
    End of 14 frame disappearance
042006091413084082 R    810           2V RE  0011   111    6                 NAA
    Start of 25 frame reappearance
052006091413084563 R    810           1V RE  0011   111    6                 NAA
    End of 13 frame disappearance
062006091413090678 R    810           2V RE  0011  U111    6                 NAA
    Start of 5 frame reappearance to 400 of 12,000
072006091413090691 R    810           2V RE  0011  U111    6                 NAA
    Start of 5 frame reappearance to 800 of 12000
082006091413090749 R    810           1V RE  0011  U114    6                 NAA
    Step down to 400 of 12,000
092006091413090798 R    810           2V RE  0011  U114    6                 NAA
    Step up to 800 of 12,000
102006091413090855 R    810           1V RE  0011  U114    6                 NAA
    Step down to 400 of 12,000
112006091413090868 R    810           1V RE  0011  U111    6                 NAA
    End of 5 frame disappearance
122006091413091879 R    810           2V RE  0011  U111    6                 NAA
    Start of 5 frame step up to 7,000/12,000
132006091413091920 R    810           1V RE  0011  U111    6                 NAA
    End of 7 frame step down to 3100 of 12,000
142006091413091922 R    810           2V RE  0011  U111    6                 NAA
    Start of 10 frame step up to 12,000

See the Video.. Raise the brightness. Target is obvious.. Click HERE 5.3MB

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