Scorpio, the meaning of stars

The most prominent constellation in the zodiac of Scorpio. Center position: right ascension 16: 40, declination -36 degrees. Summer appears in the southern sky, and the scorpion's tail points to the southeast, between the snake head, Sagittarius and Libra. Alpha star (Antares) is a red star with a magnitude of 1. The open clusters M6 and M7 are visible to the naked eye. There are 22 stars in the constellation that are brighter than 4. The eighth house of Scorpio. The longitude of the meridian varies from 2 10 degrees to 240 degrees. The sun comes to this house every year around1October 23rd, 10. The solar term at that time was the first frost. Antares, the alpha star of Scorpio (the main star of Scorpio), also known as fire in ancient China, belongs to the seven-night antares of the Eastern Black Dragon (Antares has three stars, namely Scorpio σ, α and τ, also known as Samsung), and is used to determine the seasons. "Fire in July" means that Mars is heading west and the weather is cold. Antares is the15th bright star in the whole day, which is a visual binary star. The magnitude of the main star is 1.2, and the red giant with M 1I is 6000 times the brightness of the sun. The companion star is a blue dwarf with brightness of 5.4 and angular distance of 3 ". The synthetic magnitude is 0.96 and the absolute magnitude is -4.7. 600 light years away. Modern astronomy is called "Scorpius alpha star [1]". This is a red Supergiant star. It is a semi-regular variable star with obvious light variation and forms a visual binary system with a blue main sequence star. Antares or radio sources.

The main star of Antares is actually a semi-regular variable star, with a brightness of 0.9 to 1.8 and a dimming period of 48 years. The surface temperature is 3600K, the radius is 700 times that of the sun, the surface area is 360000 times that of the sun, and the mass is 15.5 times that of the sun.

AntAres, the English name of AntAres, is a combination of Anti and ares. Ares is the name of God of War and Mars in Greek mythology, which means "the enemy of Mars". Because the brightness and color of Antares are very similar to those of Mars, and the orbits of both stars are on the ecliptic, when Mars runs to Scorpio, two red stars shine in the sky, so Antares is named. In ancient Persia, Antares, Bi Suwu, Xuanyuan XIV and Beiluoshimen were collectively called the four heavenly kings. I wonder if you regard "heart" as "star"? )