Observed Maxima Timings of RR Lyrae Stars, Number 1: XZ Cygni 1965-2002


The ASCII file xzcyg.asc contains the following publication information:
Table of contents, Introduction, Table 1 (contributing observers), and the
compiled times of maxima.

This compilation contains 613 maxima timings of XZ Cygni.  There are
seven columns of data:

Column 1:  Heliocentric Julian Date (in minutes) of the time of maximum
Column 2:  Cycle number of the maximum (relative to equation 1)
Column 3:  O-C value for the maximum (relative to equation 1)
Column 4:  Cycle number of the maximum (relative to best-fit elements for era)
Column 5:  O-C value for the maximum (relative to best-fit elements for era)
Column 6:  Number of observations used to compute maximum
Column 7:  Name of the observer

Do not distribute these observations without written permission of the AAVSO
Director, Dr. Janet A. Mattei.

Hard copies of or individual observations in this publication may be obtained
from AAVSO Headquarters.  Any questions or comments about these observations
should be addressed to:

Dr. Janet A. Mattei                     telephone: 617-354-0484
Director, AAVSO                         telefax: 617-354-0665
25 Birch Street                         Internet: aavso@aavso.org
Cambridge, MA 02138, USA                home page: http://www.aavso.org
                                        ftp site: ftp.aavso.org/monographs/rr