However,
5 info know before looking:
You may see them in the sky this Tuesday evening. Furthermore, Perhaps you will even formulate one or the other wish. Consequently, But do you really know where the shooting stars come from? However, Yaël Nazé’s response, an astrophysicist. In addition,
We can see shooting stars all year round. For example, but it is above all mid-August that we talk about it, because of the Perseids, one of the most intense shooting stars, visible between July 17 and August 24, with a peak around August 12-13. Their number could reach up to 100 per hour!
This is not a star – 5 info know before looking
Despite its name, the shooting star is not, however, a star strictly speaking. Furthermore, “This is a heap of material. Similarly, ” explains Yaël Nazé, astrophysicist, research master at the FNRS, the size of a grain of sand 5 info know before looking to that of a large rock, which arrives in our atmosphere and which consumes it, leaving behind this characteristic trail. In addition, ” The shooting star is therefore in reality not very far, barely a few tens of kilometers above our heads. Nevertheless, “When it does not disintegrate completely. there are debris in our atmosphere, adds Yaël Nazé, this creates meteorites, fragments of matter that come from space and cross our atmosphere until reaching firm land.”
We have been monitoring the sky for several decades.
Should we fear fallout on our living spaces? “Do not worry about the shooting stars that we see in the sky. reassures Yaël Nazé: they only leave behind dust, we can observe them in peace. For meteorites, no problem to have either. We have telescopes that have been monitoring the sky for several decades to try to check if a 5 info know before looking big. debris is approaching the earth. have already tested missions to divert asteroids, so it is doable.
Dozens of streams of shooting stars per year
Certain moments of the year are particularly conducive to shooting stars. and one wonders why. “The rains of shooting stars are explained by the passage of the comets in our solar system, says the astrophysicist. Approaching the sun, a comet begins to degas: its surface warms up, releasing gas, dust, pebbles and other fragments. This material is disintegrated and forms a draft of debris which remains along the orbit of the comet. The year, the earth meets this orbit full of debris in its race around the sun.
And if these phenomena come back at the same time each year, it is because one period of the year is associated at a time on the orbit of the 5 info know before looking earth. “The most famous shooting of shooting stars is in August. explains Yaël Nazé, because it is substantial and it takes place at a time of the year when we are often outside, on vacation, more able to observe the sky. It is also one of the first to have been explained as being linked to a comet. But there are in fact dozens of the rain of shooting stars in a year.”
In practice
If you want to observe the shooting stars. you will increase your chances of seeing them by following these some advice from our astrophysicist: “The ideal is to go to a quiet place, with a clear sky and without too much light pollution around you. In town, only the brightest shooting stars are visible. You will be more likely to see more in the countryside.”
Texts: Maria-Laetitia Mattern
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