Equuleus

Equuleus is the second smallest constellation in the sky after Crux. Despite its diminutive size, it was known to the ancients and was one of Ptolemy's original 48 constellations. It contains no bright stars or notable deep-sky objects, making it a challenge for amateur astronomers.

Location in the Sky

When to Observe

Equuleus is best observed during September. It is located in the NQ4 quadrant and is primarily visible from the northern hemisphere. The constellation contains 3 main stars forming its asterism, with 10 Bayer/Flamsteed designated stars in total. Its brightest star is Kitalpha.

Mythology & History

In Greek mythology, Equuleus is sometimes identified as Celeris, the brother of Pegasus, given to Castor by Mercury. Another tradition associates it with Hippe, daughter of the centaur Chiron, who was transformed into a horse. It is one of the constellations listed by Ptolemy, making it one of the oldest recognized patterns.