When will Hayles comet be visable from Earth?
every 74 to 76 years
next expected around 2061
Yes, they are visible. Every year the earth passes through the orbits of old comets (or similar objects) and these result in meteor showers. Amongst the better known ones, visible in the Northern hemisphere, are the Perseids in mid August from the comet Swift-Tuttle and the Leonids in mid November from the comet Tempel-Tuttle..