The Antares, or Mars-like, in red, is an undisputed star of the sky, 680 times greater than the diameter of our sun, and if it were located, it would swallow the orbits of the first four planets, Mercury, Venus, Earth and Mars.
Recently, the European ALMA Observatory, located in the Chilean Desert in South America, discovered that the Scorpio has an active gas envelope that extends away from the star more than 12 times as its original diameter, meaning that it will fill the orbit of the planet Uranus in a sphere of about 6 diameter Billions of kilometers.
Although its mass does not exceed the mass of the sun more than 12 times, its magnitude due to its passing through its later stages of life makes it shining in the night sky. It is about 550 light years away from us, meaning that what we see from its light today came out of it 550 years ago, and it may have exploded after that, but the news of it exploded on the way to us, and when it does not come after.
The ends of the stars ... shapes and colors
The life of stars usually ends in three forms, the white dwarf, the neutron star, and the black hole, depending on their mass and after depleting their hydrogen fuel, which keeps them natural stable stars for more than 90% of their life span.
But then it begins to shrink and expand due to the type of gas that will replace hydrogen and become nuclear fuel that keeps its light.
Once in helium, which is the next hydrogen component, the star expands and becomes a red giant, and the red color returns to its low surface temperature of only about 3500 degrees.
As the colors of the stars are signs of the temperatures of their surfaces, blue is the hotest at more than 25 thousand degrees, followed by white with 11 thousand degrees, then yellow with 6 thousand and finally red by about 3500 only.
Regardless of whether the red star is a newborn mother or a giant, the temperature is about the same.
End of the fuel ... destiny
As for the interior, the fuel changes successively to heavier and heavier elements, until it ends with iron, which is the most stable element in the periodic table.
Where the giants of the stars and above the giants warn them, as is the classification of "the heart of Scorpio", with a resounding end in the form of a supernova "supernova" shines in the sky.
Like some of the stars that were seen doing this, and recorded their characteristics, the most famous star of the Muslim astronomers Ibn Sina and Ali bin Radwan al-Masri, when it exploded in the year 1006 AD and remained shining in the sky below the Libra in the constellation of Seven for a full three months before its light faded and denounced.
But he left behind a nebula we can still see its remains to this day. Astronomers have never found a neutron star or black hole after this explosion.
And the heart of Scorpio possesses the same fate, so it can disappear completely, or leave a black hole after it in the middle of a nebula spread in space.
In the Arab heritage
Scorpio has never sinned in form and description, but Muslims described it as creatively as possible, as they made him two Zaban, two sensing horns that extend them in front of him and are located in the Libra. One of the houses of the moon where it descends once a month.
More importantly, they likened the two stars surrounding this heart to the “tailor,” which are two bones in the human rib cage that surround the heart and protect it from bruises and shocks. Modern astronomy has given the name of armor to each of these two stars.
There is no doubt that the sky is crowded with the names of the Arab stars, despite the distortion of their writing while being transferred to Latin in Europe, so it does not look Arabic except for the experts of the names of the few stars in the world.
However, the number of stars with Arabic names in the sky map officially recognized by the International Astronomical Union constitutes two thirds of the stars of this map.
The best known of the stars are "Betelgeuse", "Aldebaran", "Vega", and many others.