Hubble's low-Earth orbit also kept it within a safe and accessible range for astronauts, who used the space shuttle to visit the telescope repeatedly over the years to repair and upgrade its components. Hubble is currently located 326 miles (525 km) above Earth's surface.
Hubble completes one full orbit every 96 minutes. A road trip from Los Angeles to New York City would take only 10 minutes. Provided that Hubble passes closely enough overhead, it is relatively dark, and the skies are clear enough, Hubble can be seen with the naked-eye. It appears as a fast moving spec of light.