Spring Triangle 2014-03-21

The Spring Triangle is a distinctive formation of the southern spring sky. It is formed by the stars Arcturus (constellation Bootes), Regulus (Leo) and Spica (Virgo).
A smaller, but more regular triangle can be drawn using Denebola (at the Lion's tail) instead of Regulus. With these three stars and Cor Caroli (constellation Canes Venatici), the Great Diamond can be formed (upper two edges dotted in the image).

See also: Winter Hexagon