Radiant (meteor shower) move along the comet's wake, and when the Earth moves through such debris, a meteor shower results. Because all of the debris is moving in roughly the same direction, the meteors which strike the atmosphere all "point" back to the direction of the comet's path. As an exception, the Geminids are a shower caused by the object 3200 Phaethon, which is thought to be a Palladian asteroid. The radiant is an important factor in observation. If the radiant point is at or below the horizon, then few if any meteors will be observed. This is because the atmosphere shields the
December Festival Hurdle December Festival Hurdle The December Festival Hurdle, currently known by its sponsored title of the Ryanair Hurdle, is a Grade 1 National Hunt hurdle race in Ireland which is open to horses aged four years or older. It is run at Leopardstown over a distance of about 2 miles , and during its running there are eight hurdles to be jumped. The race is scheduled to take place each year during the Christmas Festival meeting in late December. Prior to 2013 the race was named the Istabraq Festival Hurdle in honour of Istabraq, who won it four times. The race