- Comet Leonard will make its closest approach to Earth, at a distance of about 35 million kilometres from our planet.
- Currently, astronomers have observed over 3700 comets in our Solar System and Leonard is a typical comet going around the Sun at a speed of about 47 kilometres per second.
- Comets are icy leftovers from the early phases of the formation of the outer planets. They orbit the Sun and when they move towards the inner Solar System, emit particles and gas.
