DELTA LEONIS

'Delta Leonis' (δ Leo / δ Leonis) is a star in the constellation of Leo. It also has traditional names 'Zosma' (or 'Zozma') or 'Duhr'.
Zosma is a relatively ordinary main sequence star, although it is somewhat larger and hotter than the Sun. It is a fairly well-studied star, allowing for relatively accurate measurements of its age and size. Having a larger mass than the Sun it will have a shorter lifespan, and in another 600 million years or so will swell into an orange or red giant star before decaying quietly into a white dwarf.

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★ Delta Leonis, Prof. Jim Kaler, University of Illinois