History of the star: This is the Spiral Nebula, or the Whirlpool Nebula, N. G. C. 5194, 51 M. in the northern Hound, Canes Venatici. Described in 1899 as "a misty spot which appears to be composed of a pair of curving arms issuing from opposite extremities of an oval central body, one of the arms joining itself to a second nucleus, — a new star system in process of formation". 

[Star Names, Their Lore and Meaning, Richard Hinchley Allen, 1889].

The word copula: The word 'copula' means 'a linking verb', or anything that provides a link between two things. From Indo-European word ap-¹ To take, reach. Derivatives are copulate, couple, from Latin copula, bond, tie, link, bond, pair. [Pokorny 1. ap- 50].

The astrological influences of the constellation: This constellation gives a love of hunting and a penetrating mind, making those born under it faithful, keen, clever and fond of speculation. (Robson*)

The general astrological influences of the star: It causes blindness, defective eyesight, strong passions, hindrances and disappointments.

*(Fixed Stars and Constellations in Astrology , Vivian E. Robson, 1923)