The radiant, the point in the sky where the Eta Aquarids seem to emerge from, is in the direction of the constellation Aquarius. The shower is named after the brightest star of the constellation, Eta Aquarii.
The Eta Aquarids is one of two meteor showers created by debris from Comet Halley. The Earth passes through Halley’s path around the Sun a second time in October. This creates the Orionid meteor shower, which peaks around October 20.
Comet Halley takes around 76 years to make a complete revolution around the Sun. The next time it will be visible from Earth is in 2061.