Sagitta, the arrow:

One of the smallest constellations in the night sky, Sagitta has been recognized since ancient times. This small group of stars has be pictured as the arrow who killed the eagle Aquila, the arrow Hercules used against the Stymphalian Birds, and even the arrow used by Cupid. The constellation can be found in the middle of the asterism known as the "Summer Triangle", it is located to the north of the bright star Altair in the constellation of Aquila.

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