Comet Machholz taken by Brian Woosnam and Dean Watson on the same day:
Jan 8th 2005.
There's hundreds, thousands or even countless millions of them whizzing
around the outer solar system but most of them are just occasional
visitors to the inner solar system where they can be seen with amateur
telescopes, binoculars or even the unaided eye. You just have to catch
them as/when the opportunity arises.