Constellation situated between RAs 01h 45m and 03h and Dec 15 to 25 N Has two navigational stars '–/ (Hamel) and p Arietis2 First sign of Zodiac, extending from 0 to 30deg celestial longitude Sun is in this sign from March 21 to April 20 (about) Name is often used as a short form of 'First Point of Aries'