The meteor shower Perseids is one of the astronomical spectacles summer evenings. / NASA / JPL
In journalism and other areas such as the police investigation, the concept of the ‘Five W’ English to know the whole story about some matter is used. With the help of the Federation of Astronomical of Spain answer the five W on the Perseids, the famous meteor shower of the summer, which this year reaches its peak on August 12.
What ? – What : The shower of shooting stars that began in mid-July softly approaches its maximum?. Among astronomers is a war of numbers on which you can see this summer: from 150 to 500 meteors per hour, but whatever the exact amount, the astronomical show is guaranteed. Hundreds of shooting stars leave their ephemeral trail for a moment to the delight of observers.
Who? – Who are the main characters : The Perseids?. They get their name because the meteors emerge from the constellation Perseus in the northeast horizon, and seems to run in all directions. It’s what astronomy is called ‘radiant’, although it is only an optical sensation. Actually the trajectories of meteors are parallel, but for a look similar to the train tracks effect, seem to merge in a distant point. The Perseids are also called tears of St. Lawrence that appear around this festival (August 10).
When? – When is the best time for observation : In 2016 the activity of the Perseids occur between July 17 and August 24?. Although the maximum will occur on August 12 during the day in Spain (between 15 and 17: 30h peninsular time), the best night for observation is 11 and 12 this month. The Moon is in its growing early in the night phase, so its light could subtract some beauty to rain, but between two and six in the early hours of August 12 the sky will show the Perseids in all its glory. According to some astronomers, the next night, from 12 to 13 August, could be even better.
Where? – See Perseids Where : Anywhere where you can observe a dark starry sky?. It is therefore appropriate, away from the cities and towns with light pollution. The Federation of Associations of Spain Astronomic has organized many activities in different parts of the country so that anyone who wants to enjoy one of the most striking astronomical events of the year. Needless to observe the Perseids telescope missing. They look to the naked eye.
Why? ?. – Why happen : Calls ‘shooting stars’ are caused by meteoroids or small dust particles that are leaving comets and asteroids on its journey around the sun In the case of the Perseids, come from comet 109P / Swift-Tuttle. Since mid-July the off meteoroids Swift-Tuttle intersect with our planet and shock produces a temperature rise in these fragments, which causes them to disintegrate and emit a flash of light: the shooting star or, in scientific terms, meteor. Astronomers Lewis Swift and Horace Tuttle discovered the comet that bears his name in 1862. Three years later Giovanni Schiaparelli realized that this comet was the source of the Perseids.
Swift-Tuttle is the same size the asteroid that wiped out the dinosaurs 65 million years ago, but scientists have confirmed that at present, there is no danger of colliding with Earth. This quiet, there is only us with a deck chair, sleeping bag or blanket to approach the field or the beach, and with feet pointing to the northeast, prepare a picnic dinner and prepare to enjoy the night sky, in one of his nights magical year.
Original article here.
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