BELGIAN ASTRONOMICAL SOCIETY V.V.S. -  Working Group Variable Stars
Cataclysmic Variables Circular No.50                1995, August 03
Ed.: T. Vanmunster, Walhostraat 1A, 3401 Landen, BELGIUM
     Internet: tvanmuns@innet.be                  TEL. 32-11-831504
     P. Van Cauteren, de Borrekenslaan 54, 2630 Aartselaar, BELGIUM
     Internet: pvancaut@innet.be                  TEL. 32-3-8774098
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TW Tri [UGZ, 13.3p - 17.0p]
===========================

This poorly studied object is undergoing an outburst, as indicated
by the observations below. Although the subclass (Z Cam) of this
dwarf nova seems secure, we could trace no further information in
the Simbad database, operated at CDS, Strasbourg, France. Also the
"Outburst Activity Database on Selected Cataclysmic Variables" lists
no additional observations.

The coordinates of TW Tri, given in Downes and Shara (1993) are :
R.A. = 01h36m37.06, Decl. = +32d00'39.0" (J2000.0). A GSC-based search
chart, drawn by Paul Van Cauteren, Aartselaar, Belgium, on the basis of 
the above mentioned coordinates, shows the object on a position which
is slightly different from the position indicated on the finding chart
at page 233 of Downes and Shara (1993). We therefor recommend astrome-
tric follow-up observations to obtain an accurate position of this
object.

1995 Jul 23.010 UT, [14.2  (T. Vanmunster, 0.35-m refl., seq: GSC);
     Aug 03.087 UT,  14.3  (T. Vanmunster);
     Aug 03.104 UT,  14.3  (E. Broens, 0.35-m refl., seq: GSC);


References
----------
Downes, R.A., Shara, M.M., 1993, PASP, 105, 127-245.


Tonny Vanmunster