Meteor showers occur around a dozen times every year, when Earth passes through streams of particles left by a comet or asteroid. Most of these particles are the size of a grain of sand, though they can be up to a metre wide. They travel at tens of kilometres per second and produce bright streaks in the night sky as they burn up in Earth's atmosphere.
Pro photographer Fergus Kennedy has plenty of experience of shooting meteor showers. "They offer great opportunities to get unique images," he says. "They don't come around too often and quite a few elements need to come together before you get a good shot, so it's exciting when they do."
Individual meteor showers vary in intensity; at their peak, they can produce between 10 and 150 meteors per hour. Each shower occurs annually, when the Earth's orbit takes it through a specific cloud of particles, and is visible in a particular part of the night sky. One of the best is known as the Geminids, because the shower approximately aligns with the Gemini constellation. It takes place in early December and usually peaks around 14 December.
Here, Fergus, in the UK, and fellow astrophotographer Timo Oksanen, based in Finland, offer their expert advice for photographing meteor showers.