Re: [vsnet-chart 391] Comments on the current chart discussions Dear Dr. Mattei, I have visited the web page you mentioned. The present work by the AAVSO is appreciated, since the removal of inconsistencies on existing charts and sequences is one of the urgent tasks of the present-day variable star organizations. As a matter of fact, I expected to see on that page some sort of a summary of discussions by the AAVSO members, selection criteria of comparison stars from CCD/PEP photometry, or anything practical, but I understand from your later words that these things can be more adequately represented by an international group, rather than under the control or authority of the AAVSO. As of improving the existing AAVSO charts, you are making an excellent job! Since it seems that standarization of selection criteria of comparison stars, catalog selection, etc. are not yet substantiated in any widely approved form, we shall concentrate on these matters (which will become more important in the coming era of all-sky surveys), as well as other problems (sometime case studies) in the existing software/catalogs/charts and the way of using them. Regards, Taichi Kato