The graph below shows the attempt to detect rapid fluctuations for V455
And. 10 sec integration times were used, and the images were
binned (2x2) on chip. This resulted in about a 13 sec cycle
time. The photometry apertures were correspondingly made
smaller. Notice that V455 And (bottom curve) is doing some rapid
fluctions that aren't seen in the comparison stars.
Below is an expanded time axis for the same data. Notice that
there is some semblance of a rapid period fluctuation in the data for
V455 And on the order of 1 cycle/min. I tried Peranso for
the first time and could see frequency components at about 1/minute and
2/minute. The data for 2.5 hours is linked here. Donald F. Collins
V455 And Sept. 18-19 (JD 2454362.56)
20 cm telescope, 20 sec integrations; un-filtered. Clouds at the
large error bars. Don Collins
