Ibrahim Al Jarwan, Chairman of the Board of Directors of the Emirates Astronomical Society, a member of the Arab Federation for Space and Astronomy, explained that the Galactic River, the Milky Way, or the Milky Way is that region of the full sky of stars, galaxies, and deep, faint nebulae, these names according to the different names given to it by the people of ancient civilizations.
He said that starting from the beginning of May to the end of August, this time is considered to be the best time of the year to see the Milky Way constellation, and it happens at midnight at the point highest above the southern horizon in the midnight sky. July.
He pointed out that it is possible to see the “Galactic River”, the heavenly river, in the summer sky as the Arabs saw it in ancient times, indicating that the Arabs compared between the galaxy and a flowing river, so they named it. Galaxy River, and in the mythology of the Arabian star, the ostriches return to the river to drink from it, and sometimes they are “Incoming Ostriches,” released after drinking, are “outer accents.”
He explained that the river separates the two sisters, Al-Shara’i, the Yemeni and the Levantine. The Al-Yamani (the brightest star in the sky) crossed it, following their brother Suhail, and so it was called “Al-Obour”. ,” and the Levantine could not cross it, so she cried until she closed her eyes, and so it was called Al-Ghumaydha, and it is the river that runs in the Fares (Stars constellation Cygnus) and then the rump. (the star on the tail of Cygnus) trying to catch them, or the “Milky Way Galaxy”, as the Arabs called livestock they left behind while carrying it on his back , and the Milky Way is the animal that… Carries hay, or the Milky Way The Milky Way» Shows the Greco-Roman legend about the origin of the Milky Way, where the Greek legend shows Hera (Juno), pouring milk, for the infant Heracles (Hercules), as seen in the arm of the galaxy the milk / spilled milk .
He pointed out that the arc, which is rich in stars and various cosmic bodies, extends at the height of its ascent in the sky, from the north-east of the sky, crosses the middle of the sky and then extends to the southwest, and the southern parts between Scorpio and Sagittarius or the Archer are considered to be the densest parts because the center of the galaxy is located towards the Archer Tower.
He said that this cosmic place in the sky is considered the richest by astronomers, because it includes large numbers of stars and nebulae as well as gases and cosmic dust looking at it this arc gives the brightest and richest field in the middle of summer when the archer arm (Sagittarius) rises, and it is one of the five main arms in our galaxy considered as one of the longest arms in the galaxy, and the galaxy has two main arms and other arms.
He also said that the galaxy is classified as low luminosity, because it is considered to have faint lights and is difficult to distinguish, especially in places where there is light pollution or where the light of the moon is ‘ shine, and you see a concentration of stars in form. an extended arc across the sky.
He spoke about the development of astronomical observation tools, explaining that it has been possible to see the stars clearly through long exposures in photography, exposure is the amount of light that is allowed to be pre- evaluate the light-sensitive photo slide of the photography process by changing the width of the lens opening, shutter speed and sensor sensitivity The higher its value, the more it is able to capture more light in low light environments.
