COMMISSIONS 27 AND 42 OF THE IAU
           INFORMATION BULLETIN ON VARIABLE STARS
                        Number 3859

                                             Konkoly Observatory
                                             Budapest
                                             16 March 1993

                                             HU ISSN 0374 - 0676


             A NEW ECLIPSING BINARY (Fr3 Cnc)*


On photographic observation of asteroid 4179 Toutatis on December 28/29,1992
(with a Lichtenknecker Highspeed-Flatfield-Camera f=576/2.0) I found eclipsing
light variation (about 11.0-11.5 mag.) on one of three comparison stars.

In the following two months I could observe a further primary minimum and two
secondary minima.  Moreover I could fill the gaps over the total phase, so that
first rough elements could be derived:

  Min.=JD 2449030.430+1.323147dxE

The duration of the primary minimum is short (about half an hour - Figure 1) is
contrast to the relatively long "d" of the secondary minimum (about 0.25 mag.)
of nearly one hour (Figure 2).  In view of these facts photoelectric
observations are highly recommended.


                            [FIGURE 1]
                            [FIGURE 2]


*This is an independent discovery of light variation of GSC 1383 600 announced
in the No.  3839 issue of the IBVS.  (The Editors)




Coordinates for Epoch 2000.0: RA=08h29m39s D=+17d17'01".
The finder chart (Figure 3a) shows a field of 3d x 3d of the SAO-Atlas, and a
1d x 1d field of the TMA-Atlas (Figure 3b).


                           [FIGURE 3]



                          Peter FRANK
                          Hauptstrasse 4, W-8319 Velden/Vils
                          Bundesdeutsche Arbeitsgemeinschaft
                          fur Veranderliche Sterne e.V. (BAV)