Sagittarius (constellation) points towards the star Antares, the "heart of the scorpion", and Sagittarius stands poised to attack should Scorpius ever attack the nearby Hercules, or to avenge Scorpius's slaying of Orion. , the Sun appears in the constellation Sagittarius from 18 December to 18 January. In tropical astrology, the Sun is considered to be in the sign Sagittarius from 22 November to 21 December, and in sidereal astrology, from 16 December to 14 January. Sagittarius (constellation) Sagittarius is one of the constellations of the zodiac. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one
Hellenistic astrology around the late 2nd or early 1st century BCE after the Alexandrian conquests this Babylonian astrology was mixed with the Egyptian tradition of Decanic astrology to create horoscopic astrology. This system is labeled as "horoscopic astrology" because, unlike the previous traditions, it employed the use of the ascendant, otherwise known as the "horoskopos" ("hour marker") in Greek, and the twelve celestial houses which are derived from it. The focus on the natal chart of the individual, as derived from the position of the planets and stars at the time of birth, represents the most significant contribution and shift of emphasis