About this star:

A star cluster in the sword hand of Perseus the Hero. M34 (NGC1039) is a fine open cluster scattered over 35 arc minutes, more than the diameter of the full Moon. It contains about 60 stars, about 10 bright stars are noticeable with lots of faint stars as a background through binoculars.

Influence of the constellation:

It gives an intelligent, strong, bold and adventurous nature, but a tendency to lying.  By the Kabalists it is associated with the Hebrew letter Lamed and the 12^th Tarot Trump "The Hanged Man". (Robson).

The constellation is indicative of events effecting large numbers of people, especially those events caused by major meteorological phenomena. When prominent in a natal chart it is said to denote adventurous individuals, but also those who are less than honest in their dealings with others. (Noonan). 

Influence of the star:

It causes blindness or defective eyesight. (Robson).