This 21 and October 22 may be present between Europe and the United States the largest meteor shower of the year. These are the Orionids caused by Earth passing through the trail of dust and gas from Comet Halley. It turns out that this year promises to be especially intense phenomenon. The video that appears on these lines corresponds to the Orionids 2006. But if we omit the dates, It explains perfectly what to do to enjoy the show. "The particles of comet dust hitting the atmosphere should give us several dozen meteors per hour," says Bill Cooke of the Environment Office at NASA's Meteoroid. 
Usually, this rain does not produce more than 15 or 20 meteors per hour, but in recent years (since 2006) "The Orionids have been one of the best showers that occur in the year, as they have counted 60 or more meteors per hour, "explains Cooke. 
If the rain clears and you have the courage to get up a couple of hours before dawn tomorrow, then it could enjoy a performance comparable only to that of the Tears of St. Lawrence in August. And you do not need a telescope to observe the Orionids across the sky. The explanation for this extraordinary number is given by the Japanese Mikiya Sato and Jun-ichi Watanabe, two astronomers who are dedicated to the study of meteors. And according to them, precisely from 2006, the Earth crosses the comet's ancient steles Halley, namely those that left in its passage through the Earth in the year 1266 BC, 1198 BC and 911 BC and are rich in large fragments capable of producing very bright meteors.
Due to the size of these old trails, Sato and Watanabe hope this year meteor shower is not only a matter of one night can also be seen in the early hours of 22 and 23 October. Perhaps by then Spain has a cloudless sky that allows the enjoyment of this rare spectacle. The two charts below let you know where to look observers in both hemispheres. 
If the rain clears and you have the courage to get up a couple of hours before dawn tomorrow, then it could enjoy a performance comparable only to that of the Tears of St. Lawrence in August. And you do not need a telescope to observe the Orionids across the sky. The explanation for this extraordinary number is given by the Japanese Mikiya Sato and Jun-ichi Watanabe, two astronomers who are dedicated to the study of meteors. And according to them, precisely from 2006, the Earth crosses the comet's ancient steles Halley, namely those that left in its passage through the Earth in the year 1266 BC, 1198 BC and 911 BC and are rich in large fragments capable of producing very bright meteors. 
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