Coloured historical artwork of the constellation of Taurus. The constellation is depicted as a bull charging at the shield of Orion, below the Bull to his left. Taurus is the second sign of the Zodiac. The Sun is in Taurus between 20 April and 20 May. It is a conspicuous and important constellation, and has been depicted as a bull for many centuries. The bright star Aldebaran marks the lower of the Bull's eyes.