GW170817 is the name of the gravitational wave event that was detected on August 17, 2017.

The GW170817 event was caused by the collision of two neutron stars.

The GW170817 event was located in the galaxy NGC 4993, which is about 130 million light-years away from Earth.

The mass of the two neutron stars involved in the GW170817 event was 1.4 solar masses and 2.6 solar masses.

The GW170817 event lasted for about 0.1 seconds.

The distance between the two neutron stars when they collided was about 100 kilometers.

The speed of the two neutron stars when they collided was about 0.99 times the speed of light.

The energy released in the GW170817 event was about 10^53 joules.

The gravitational wave strain produced by the GW170817 event was about 10^-21.

The frequency of the gravitational waves produced by the GW170817 event was about 100 hertz.

The wavelength of the gravitational waves produced by the GW170817 event was about 3,000 kilometers.

The Hubble Space Telescope observed the optical counterpart to the GW170817 event.

A kilonova, which is a type of supernova, was detected in the optical counterpart to the GW170817 event.

Gold was detected in the gamma-ray counterpart to the GW170817 event.

The GW170817 event was the first detection of gravitational waves from a neutron star collision.