9/3/2023 0 Comments Stars in the skySuch quoted stellar brightness is sometimes based on the average maximum apparent magnitude from estimated maxima over many observed light-curve cycles, sometimes spanning across centuries. For red variable stars, specifying a single maximum brightness is often difficult because each cycle produces a different maximum brightness this is thought to be caused by poorly understood pulsations in stellar evolution processes. the eclipsing binary Algol) or, if the variations are small, a simple average magnitude. Magnitudes shown in the table are either when the stars are at maximum brightness, which is repeated for every cycle (e.g. Single magnitude values quoted for variable stars come from a variety of sources. In the table, the range of variation is indicated with the symbol " var".
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