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Bright Southern Cepheids

Presentation by Stan Walker at the RASNZ Conference 2014

This project has gradually evolved and we're now looking at those with periods in excess of ten days - which appear to be the likeliest to show period changes. Some objects are suited to DSLR photometry, others for binocular measures. O-C diagrams showing period changes, some abrupt, some parabolic and a few with possible short term fluctuations are presented. Some of these go back to the nineteenth century. A list of suitable stars has been compiled. Other aspects include the effects of filter wavelengths upon epochs of maxima and the problems with historical data, particularly photography.


Size 374.22 KB
Author Stan Walker
Created 2014-07-26 03:51:35
Created by vssadmin
Changed at 2014-08-09 01:41:04
Modified by vssadmin


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