Alpha Ori is an irregular LPV that I am interested in Visually observing. I read the article espectivion this particular variable in the Dec 2000 Variable Star of the season. It recommended using Procyon and Aldebaran as comparison stars. The magnitude of the two stars were given as 0.5 and 1.1 respectiveley. However reviewing the literature I find that Procyon is list as 0.4 mag and alderbaran at 0.85. I reported the magnitude as 0.5 as Betelgeese was approximately the same magnitude as Procyon. After submitting the data I checked to see how close I was to other individual observations as this is a tool for me to see how well I am doing. Most every body had the mag at 0.4. This leads to the question am I using the wrong magnitude for the comparison stars or is my technique not as good as it should be. How do I find the correct magnitude for these stars?