Asterope

Part of speech: noun (n.)

1. (Myth.)

2. One of the Pleiades; -- called also Sterope.

3. (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.