The Perseids can be seen with greater intensity the night of 12 to 13 August, but the moon will hamper its observation, as will have passed through the phase of full moon two days before and will be present throughout the evening. In addition, this full moon will be 30% brighter to coincide with perigee, the closest point in its orbit to Earth, so given the proximity of the 'Supermoon', only the brightest shooting stars can be seen as reports the Institute of Astrophysics of the Canary Islands (IAC).
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Popularly known as 'tears of San Lorenzo' will be once your radiant, reachable in the northeast direction, specifically in the constellation Perseus, rise on the horizon at 23.30 in the Canary Islands, just before the peninsula, depending latitude and longitude of the place. Peak activity is expected between 0000 and 0300 hours (more in Canary Peninsula and two on the time).
Every meteor shower is associated with comet. The 'shooting stars' calls Perseids are actually tiny dust particles of various sizes, usually smaller than grains of sand, that leaves the comet 'Swift-Tuttle' along its orbit.
When a comet approaches the inner regions of the solar system, its core consisting of ice and rock, is sublimated by the action of solar radiation and generates the characteristic tails of dust and gas. The resulting stream of particles is dispersed by the orbit of the comet.
Each year at this time, the Earth is the remains of this comet, which has a period of 133 years and passed by the Sun last in 1992 These dust particles, in contact with the Earth's atmosphere disintegrate at high speed, creating light trails known receiving the scientific name of 'meteor'.
The meteor shower that occurs usually has its maximum activity between 12 and 13 August, although the phenomenon is noticeable in lower intensity in the second half of July to late August.
HEATING IN PERSEUS
If all of a rain meteors would join in a single image, the impression that they emanate from the same area of the sky, which is called the radiant would. Therefore, appointing these rains depending on the constellation of the apparent origin: the name "Perseids" because her radiant is in the constellation Perseus, 'Aquarids' in Aquarius, and so the other constellations.
The various showers have different intensities, different inlet velocities in the atmosphere and different brightness of the meteors. They also have a more or less pronounced maximum and distributed over days or so depending on the scattering of debris, its size and location on the Earth's orbit, among other factors.
There are over thirty rainfall per year, but many are merely anecdotal. Highlights include the Quadrantids (January 3), the Perseids (13 August) and the Geminids (December 14). Of these three showers, the Perseids are the only ones that occur in summer, when the weather is nicer and have more free time, hence they are the best known.
The Quadrantids and Geminids, certainly more spectacular, occur in winter. It also depends on how lucky you are to have that year with the Moon. Logically, the full moon is the worst to see meteors. You also have to get away from light pollution cores if you want to be more likely to see something.
The Capricornids Alpha Delta Aquarids and the South, that could be seen barely a week ago, could also be crossed with the Perseids. In the case of the two showers mentioned, they can be observed until 15 and August 23, respectively, so that they can effectively be 'mixed' with Perseidas. To distinguish one from another, just estimate the direction of source projected in the sky and see what comes constellation.
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