I am currently working on an update to the catalogue that was summarized in the paper by C. Clement, A. Muzzin, Q. Dufton, T. Ponnampalam, J. Wang, J. Burford, A. Richardson, T. Rosebery, J. Rowe and H. Sawyer Hogg (2001, Astronomical Journal, Volume 122, pages 2587-2599).
Format of the 2009 Catalogue
The catalogue is set up as a group of individual files, one for each cluster. At the beginning of each file is a header containing the cluster name, with multiple designations indicated, and the right ascension and declination (epoch J2000) listed by W. E. Harris in the 2003 revision of his Catalog of Parameters for Milky Way Globular Clusters.
We also indicate the date when the file was updated.
This information is followed by a table that lists the known variables in or around the cluster. For each variable, we list the ID number, the position, the period, the mean magnitude and amplitude, and the type of variable.
For the classification of the variable type, we have used (in most cases) the scheme proposed by N. N. Samus at the IAU XXVIth General Assembly, Prague 2006:
The draft classification (version August 9, 2006) for the new GCVS versions.
At the end of each table, we list the original references from which all of the table entries were obtained.
In addition, we include a section "Discovery of the Variable Stars" where we cite the discovery paper for each variable and indicate how the author identified the variable in his or her "discovery paper". If there is confusion about the identification of a particular variable, the original papers should be considered the primary source for acquiring information.
Access to the Catalogue
Clusters listed by IAU designation
Clusters listed by NGC or other catalogue number
Please Note: Not all of the cluster files are available in the updated edition. As the revisions are completed they will be included. The previous revision (compiled in 2002) has been removed.
History of the Catalogue
Click here for Historical Background Information and Access to Helen Sawyer Hogg's 1939, 1955 and 1973 Catalogues
Any questions or queries should be addressed to Christine Clement:
cclement@astro
Please append ".utoronto.ca" to the above email address.