Asterope

As*ter"o*pe, n. [Gr., lit., lightning.]

1. (Myth.)

Defn: One of the Pleiades; -- called also Sterope.

2. (Astron.) A double star in the Pleiades (21 k and 22 l Pleiadum, of the 5.8 and 6.4 magnitude respectively), appearing as a single star of the 5.3 magnitude to the naked eye.