International Astronomy Center: A meteor shower from the “Pershawiyat” meteor on Thursday evening, August 12


The International Astronomy Center said that the sky is on a date with the Perseid meteor shower on Thursday evening, August 12th. Engineer Muhammad Shawkat Odeh, Director of the International Astronomy Center and a member of the International Meteor Organization, explained that scientists and amateur astronomers are preparing to observe the most popular meteor shower of the year. Once every 130 years, the meteors associated with this meteor shower begin to fall towards the Earth as it passes through the dusty belt of the comet, which occurs every year during the period from July 17 to August 24.
He said, “The number of meteors increases when the Earth crosses the densest area in this dusty belt, and this period is every year between August 11 and 13. This year is considered a very suitable year for our region to see the Pershawiya meteors due to the lack of moonlighting at the peak time and because the peak time is suitable for the Arab region for its occurrence. at night before dawn.
This year, astronomical forecasts indicate that the traditional peak of the Perseid meteor shower will occur on Thursday night on Friday 12-13 August between 07 and 10 pm GMT, and usually sees the peak time between 50 to 75 meteors if monitored from a place Dark and suitable, but in the case of observing from bright places inside cities or monitoring at a time far from the peak of the meteor shower, the observer may not see more than a few meteors only at best.
He added, “The Perseus group shines in this period around ten o’clock in the evening, and this means that the Perseid meteors begin to appear around ten o’clock in the evening, but their number is very few at this time, and over time the number of meteors will begin to increase to become more noticeable after midnight, and it will increase more with Approaching the time of dawn, so that the time before dawn is the most visible for meteors in general.” He said that those interested in seeing these meteors should monitor from a dark place far from the illumination of cities, starting from midnight Thursday to Friday, so that the largest number of meteors will be at dawn.
The radiation point of this meteor shower is located in the northeast near the Perseus group, and the radiation point is an imaginary point from which all the meteors appear to be emanating from this point, but the meteors can be seen anywhere in the sky, and it is usually preferred to look away towards 45° from the point of radiation and 45° from the horizon. Meteors are dust grains that enter the Earth’s atmosphere and melt and evaporate as a result of friction with it and ionize part of it, and as a result we see them in the form of a bright line that moves quickly in the sky for a period of seconds or a fraction of a second. It is between 1 mm to 1 cm only, and the speed of the meteor when it enters the atmosphere is between 11 to 72 km per second, and the meteor begins to appear at a height of approximately 100 km from the surface of the earth, and the number of meteors that fall on the ground is about 100 million per day, Most of them are not visible to the naked eye.
He pointed out that these meteors do not pose any danger to the surface of the Earth at all, even if they are in the form of a storm. The collision of a particle at this speed with a diameter less than the diameter of a human hair can form an electric spark capable of disabling sensitive satellite equipment, thus stopping it from working, for example, the Olympus communications satellite broke down during the Perseid meteor shower In 1993 due to a collision with one of the dirt particles.

Source: wam

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