Photoelectric Minima of Eclipsing Binaries, 1994


Tristram Brelstaff


  [Originally published in British Astronomical Association
   Variable Star Section Circular No 84, 2, 1995]


The numbers of photoelectric observations received for known and
suspected eclipsing binaries in 1994, including measures reserved
for separate discusssion, are given below.

                       No Obsns   No Timings

  J Ells APT (EJ)         603         5
  K West (WEK)             99         3

  Total                   702         8

The code EJ indicates timings made with the Jack Ells Automatic
Photoelectric Telescope operated by M Gough and R D Pickard.

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 in the table below are relative to the linear
elements given in the 4th Edition of the GCVS.


Observed Minima:

Star       Epoch    JD Hel (244...)    O-C (d)    No    Observer

AR Aur     2734        9706.3649      -0.0741     52     WEK(pe)

ZZ Boo     2175.5      9425.5000:     +0.0417:    47     EJ(pe)

VW Cep    19643        9624.3890:     +0.0422:    24     EJ(pe)

CW Cep     5192.5      9544.5324      +0.0234     67     EJ(pe)

68u Her   21330.5      9579.4536      -0.0104     73     EJ(pe)

RX Her     9190        9515.4788      +0.0004     60     EJ(pe)

VV Ori     5723        9391.323:      -0.013:      8     WEK(pe)

HU Tau     3962        9422.3920      +0.0107     26     WEK(pe)