It will be observed in the sky of Egypt and the Arab world at dawn today, Wednesday, January 18, 2023, and before sunrise, the conjunction of the moon with the star Antares towards the southeastern horizon in a visible scene with the naked eye.
revealed Astronomical Society In Jeddah, in its report, Antares is the brightest star among the stars of Scorpio, and it is a huge, giant red star so that the sun is nothing compared to it, as its mass is 15 to 18 times the mass of the sun and its radius exceeds 448,793,612 km. The sun’s surface will extend beyond the orbit of Mars and cover approximately 60% of the distance to Jupiter.
Antares is about 550 light-years away from Earth, and it is only about 12 million years old when it is in the fall of its age. Stars like Antares that are in the final stages of their life lose their mass quickly, and this leads to gases flowing in a spiral manner around the star.
And the report continued that red stars that can be seen with the naked eye are somewhat rare, in fact, all red stars The bright ones that we see in the night sky with the naked eye are either red giants (such as the star Aldebaran) or red giants (such as the stars Antares and Betelgeuse).
The report indicated that the red color of the heart of the scorpion indicates its low surface temperature, which is about 3,200 degrees Celsius, in contrast to the surface temperature of the sun, which is 5,700 degrees Celsius, which is yellow, and the matter differs when comparing the heart of the scorpion with a very hot star, such as defenseless fish. bluish-white, which has a surface temperature of about 22,100 °C.
It is worth noting that the heart of Scorpio, like all stars, rises four minutes early every night or two hours early at the end of each month, as a result of the Earth’s movement around the sun, and by October this star will be difficult to see on the southwestern horizon because it is in the light of the sunset twilight.
