Algieba, also designated as γ1 Leonis (gamma1 Leonis), is a variable and multiple giant star in the constellation of Leo.
Algieba visual magnitude is 2.61. Thanks to its high brightness, Algieba is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
Here's the graphic of its energy spectrum made with Simbad:
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SCIENTIFIC ARTICLES
I have compared my results with a scientific article (https://www.aanda.org/articles/aa/pdf/2010/01/aa12536-09.pdf ). In it he explains that the elements found in y1 Leonis are iron, and hydrogen. In my results i have only found hydrogen.