Mizar, a star in the Big Dipper's handle, has a tiny companion. This star, Alcor, was known to the ancients. The pair was popularly known as the "Horse and Rider."

How to see the 'Horse and Rider' in the Big Dipper's handle this summer

Source: space
Source Link: https://www.space.com/stargazing/how-to-see-the-horse-and-rider-in-the-big-dippers-handle-this-summer