Another factor will be the weather, with skygazers hoping for clear conditions to give them the best chance of seeing the comet. The forecast could be better for anyone hoping to spot it on Monday evening, with the Met Office predicting overcast weather for London.

Here's what Californians should know about catching this rare marvel as it zooms above the Golden State in October.

Atlas, was visible from the UK on Saturday evening and was pictured above the London skyline and over Dorset. It has been called “the comet of the century” because of how bright and visible it could be,