Do you know your dogs zodiac sign?  Not everyone does.  A horoscope is a forecast or chart of a person or dogs future based on the position of the Sun, Moon, planets, astrological events.  Not knowing the exact time of birth doesn’t leave you out of exploring or reading about your dogs astroloigical chart.  You can the use the day your dog entered your life.  If you know your dog’s birthday its fascinating to see how many traits of your dog you can see in their personality.