Johannes Gutenberg Universitt, D-65Mainz, Germany
Received: May 28, 1991
Visual estimates are
presented that show ¹ PsA to have a semiregular light curve with an average
amplitude of 0.7 magnitude and a period of approximately 8.625 days.These results are in contrast to the
available literature, that either calls ¹ PsA a small-amplitude Cepheid or
states that the star was not variable in 1964 and 1970.Spectra and absolute magnitude indicate
that the star lies outside the instability strip.