Photoelectric Minima of Eclipsing Binaries, 1995


Tristram Brelstaff


  [Originally published in British Astronomical Association
   Variable Star Section Circular No 90, 16, 1996]


The numbers of photoelectric observations of eclipsing binaries received from
various observers in 1995 are listed in Table 1.

Table 1. Observer Totals
------------------------------------------------------
   Observer           No Obsns   No Timings   Notes
------------------------------------------------------
 J Ells APT (EJ)         811         5          1
 J Saxton (XT)            83         4          2
 K West (WEK)            101         3
------------------------------------------------------
 Total                   995        12
------------------------------------------------------
 Notes:
 1. The code EJ indicates timings made with the Jack Ells Automatic
    Photoelectric Telescope operated by M Gough.
 2. The observations by J Saxton are from 1993-94.

The timings derived from these observations are listed in Table 2. A colon
(':') following a timing indicates that it is uncertain either because the
observations show large scatter or else because the rising or fading limb
was poorly covered. The O-C values are relative to the linear elements
given in the 4th Edition of the GCVS. 

Table 2. Timings of Minimum
---------------------------------------------------------------------
  Star      Epoch       JD Hel          O-C (d)    No    Observer
---------------------------------------------------------------------

 WW Aur     6778.5   2450061.3785     -0.0036      27     WEK(pe)

 BF Aur     5931     2450018.4538      0.0068     117     EJ(pe)

 IU Aur     6248     2449766.5042:    -0.0002:     40     EJ(pe)

 RZ Cas     5041     2449225.5609      0.0145      18     XT(pe)

 VW Cep    21015.5   2450006.3668      0.0332      82     EJ(pe)

 VW Cep    21037     2450012.3424:     0.0251:     37     EJ(pe)

 AI Dra     4868     2449127.4666      0.0101      20     XT(pe)

 AM Leo    18852.5   2449389.5785     -0.0060      17     XT(pe)

 AM Leo    18863.5   2449393.5976     -0.0107      20     XT(pe)

 AM Leo    19973     2449799.4561     -0.0044      94     EJ(pe)

 U Oph      3266.5   2449895.4425:     0.0048:     13     WEK(pe)

 Beta Per   1516     2449988.3685      0.0217      33     WEK(pe)

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