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Spring Triangle in the east at night, heralding the season
- The Spring Triangle is an asterism of the 3 bright stars Arcturus, Spica, and Regulus at its corners, heralding the arrival of warmer weather in the Northern Hemisphere around the March equinox.
- These stars rise in the east after dark, indicating the transition to shorter nights and springtime.
- The Spring Triangle is entirely above the horizon before midnight in March and by early April, its stars are visible by mid-evening.
- Comprising stars from Leo, Boötes, and Virgo, the Spring Triangle is not an official constellation but an asterism that guides stargazers towards the changing season.
- Regulus, Arcturus, and Spica are the key stars in the Spring Triangle, each belonging to different constellations.
- Regulus, a four-star system, marks the Lion's heart in Leo and is a bright yellowish star in the night sky.
- Arcturus, a red giant star, is the brightest in the Spring Triangle and is visible in the evenings for those in northerly latitudes.
- Spica, a bluish-white star in Virgo, appears lower in the sky than Arcturus and is part of the triangle that heralds the arrival of spring.
- An additional triangle can be seen within the Spring Triangle, including Denebola, the second brightest star in Leo.
- Stargazers can use the Big Dipper as a guide to locate the Spring Triangle in the night sky, which is larger than the Summer Triangle and nearly as big as the Winter Hexagon.
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