Asterope forms a double star with its near neighbour to the southeast, though the two stars do not form a binary system. This neighbour is designated 22 Tauri, or Sterope. Confusingly, Asterope itself was also traditionally known as Sterope, and the pair are therefore sometimes dessignated as Sterope I (Asterope or 21 Tauri) and Sterope II (22 Tauri).
The northernmost of the named Pleiades is, like all the members of this cluster,
a young and hot bluedwarfstar. Asterope's magnitude of +5.8 puts it on the edge of
naked eye visibility.
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