The Spring Triangle is an astronomical asterism involving an imaginary triangle drawn upon the celestial sphere, with its defining vertices at Arcturus, Spica, and alternately Denebola or Regulus. This triangle connects the constellations of Boötes, Virgo, and Leo. It is visible in the northern hemisphere night sky between March and May.
It forms part of a larger Spring asterism called the Great Diamond.
Famous quotes containing the word spring:
“When we reached the lake, about half past eight in the evening, it was still steadily raining, and harder than before; and, in that fresh, cool atmosphere, the hylodes were peeping and the toads ringing about the lake universally, as in the spring with us. It was as if the season had revolved backward two or three months, or I had arrived at the abode of perpetual spring.”
—Henry David Thoreau (1817–1862)