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   Dissapearance of (XZ93442) a possible double star discovery. I was using my home made 18" Newtonian at prime focus (F6) using a PC164c camera and KIWI--VTI. The light curve graph shows the steps as the stars disappear behind the Moon. With it we can get an approximate magnitude for the companion and if another observer or observers were capable of recording this event far from me at another position on the Moon limb a position angle for the two stars can be determined.

    
      I also want to say that I used Occult 4.1 and LiMovie. Can't thank them enough for the wonderful freeware!


This is the light curve for the dissapearance, the  brighter component D'd first with a 0.087s step duration.
Lunar occultation of XZ93442, April 5, 2006
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2006 Apr  5 at 3h 20m

Star = X93442
Observer =  Steve Messner
Telescope =  45.0cm

Double star details from the XZ catalogue
Star is the primary of the following pair
OCc1657       2006     :  98.0      :   0.040        : 11.60 12.10: X 93442  ------

Observation details
Star Mag = 11.06
   Event = D D
      PA = 98.238
      AA = 93.679
       l = 5.806
       b = -6.369
      RV = 0.4154
   Scale = 0.986
     CCT = 6.87
      CA = 86S
  %Illum = 46%
     Alt = 48
      T1 = 34.36
   T2-T1 = .087
   * * * * *
Second analysis  for this one. Faint companion is visible for 3 frames.
06 Apr  5  3 20 34.2 d X 93442c   11.1
   X 93442 is double: ** 11.6 12.1 0.040"  98.0, dT = +0.1sec
   X 93442 has been reported as non-instantaneous (OCc1657). Observations are highly desired