Hereâs how long the iOS 8.1 upgrade takes. You should make sure you start the iOS 8.1 download on a good internet connection, when you have time to wait for the download to complete. You need WiFi to start this and you need at least 50% battery life.
On average the moon is 380,000 km (235,000 miles) from the Earth, a distance of about 110 times its own diameter. A tennis ball would then have to be 110 x 6.7 cm = 7.37 meters (about 24 feet) from the basketball.
The Moon's average distance from Earth is about 240,000 miles, ranging from 225,000 miles at closest approach to a maximum separation of 251,000 miles over the course of its orbit. For some scale, that's 0.003 times the average distance from the earth to the sun.