Crawford, Tim
June 2009
Amateur Astronomy Magazine;Summer2009, Issue 62, p64
The article explains how to use a charge-coupled device (CCD) equipment to stimulate astrophotos. According to the American Association of Variable Star Observers (AAVSO) database, there are less than 200 variable stars that are in need of observations and less than 5,00 variable stars with known comparison stars. There are steps to follow to download a chart generated from the Variable Star Plotter (VSP) screen and how to use this chart to image a variable star and measure their magnitude.


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