VizieR Online Data Catalog: 1622 M33 cepheids parameters with CFHT/MegaCam (Adair+, 2023)

To investigate the Cepheids in M33, we utilized the archival time-series observations with Canada France Hawaii Telescope (CFHT) by Hartman et al. A 1deg² region centered at M33 was monitored repeatedly with the wide-imager MegaCam. Data was taken on 27 nights between 2003 and 2005 in three optical filters g, r, and i. Each exposure was ~500s in g and ~600s in r and i, with a median seeing of 0.95", 0.85", 0.77" in g, r, and i, respectively.

(1 data file).