NEW INTERPRETATIONS ON THE VARIATIONS OF V-651 MON

This paper carries out a frequency analysis of the photometric data av ailable in the literature pertaining to the planetary nebula NGC 2346. The frequencies 0.06259, 0.067415 and 0.00608 c/d were found from the se data that cover a time span of 2867 days, although their very exist ence is unexplained by any model of an early type star. A careful anal ysis of the data shows that the previously proposed model does not ade quately describe the observations and that the observations are more e asily explained by pulsation and eclipses in a triple system.