Equuleus, the horse or foal, is the smallest modern constellation in the Northern Hemisphere. It sits near the celestial equator and is most easily viewed in the month of August. Because it sits close to the equator, it can be seen from most places on earth.
It can be located near the constellation Pegasus, the larger winged horse. It rises just before Pegasus in the east and is sometimes called the first horse (Equus Primus).
The Nearest constellations to Draco are Boötes, Camelopardalis, Cepheus, Cygnus, Hercules, Lyra, Ursa Major and Ursa Minor.
Right Ascension: 09:13
Diameter (°): 5
Area (square °): 72
Opposition: Aug 08
Size Rank: 87th
Brightness Rank: 85th
Major or notable stars in Equuleus
Kitalpha – α Equulei (Alpha Equulei)
δ Equulei (Delta Equulei)
γ Equulei (Gamma Equulei)
β Equulei (Beta Equulei)
ε Equulei (Epsilon Equulei)
ζ Equulei (Zeta Equulei)
λ Equulei (Lambda Equulei)
Deep Sky Objects in Equuleus
Mythology of the Constellation Equuleus
The Little Horse, or the Horse’s Head, is in the head of Pegasus, and halfway between it and the Dolphin. There are several stories about Equuleus.
One story says the constellation is Hippe, the shy daughter of the centaur Chiron (Centaurus). It is said that Hippe became pregnant from Aeolus. She hid in the mountains from her father until her child was born. You can see just the head of Equuleus peeking out from behind Pegasus.
When the centaur approached, she begged to be hidden and the gods turned her into a mare. The goddess Artemis then placed her among the stars.
In another tale, this constellation is supposed to be the brother of Pegasus, named Celeris. Mercury gave him to Castor, who was celebrated for his skill in the management of horses.
Another says Equuleus represents the famous horse which Neptune struck out of the earth with his trident when he argued with Minerva for superiority.
Only the head of Celeris is visible. It is represented in an inverted position. Equuleus is the second smallest constellation in the sky and is very faint.