The nova was discovered at 11:17 UT on 7 December 1993 by amateur astronomer Kazuyoshi Kanatsu of Matsue, Japan, who photographed it using a 35mm camera with a 55mm f/2.8 lens.

It underwent a series of smaller flares until mid February 1993, after which it began a precipitous decline in brightness.

[2] The light curve of V705 Cassiopeiae showed a very pronounced "dust dip", and its brightness fell to about 16th magnitude in mid March 1994, before rebounding to about magnitude 12.5 where it stayed for about two years, after which it declined further.

The orbital period for the binary that forms V705 Cassiopeiae is 5.472 hours.

[9] The white dwarf is estimated to have a mass of 1.05 M☉ and to be receiving 2×10−9 M☉ per year of material from the donor star.