Cancer (constellation) for Karkinos's effort, gave it a place in the sky. Some scholars have suggested that Karkinos was a late addition to the myth of Hercules in order to make the Twelve Labors correspond to the twelve signs of the Zodiac. , the Sun appears in the constellation Cancer from July 20 to August 9. In tropical astrology, the Sun is considered to be in the sign Cancer from June 21 to July 22, and in sidereal astrology, from July 16 to August 16. This constellation can be found during winter or autumn. In Chinese astronomy, the stars of Cancer lie
Jewish views on astrology "Away with your astrology; for Israel there is no "mazal" ("luck", literally "planet" or "constellation")!" The birth of his second son, the patriarch Isaac, then gives lie to the idea that astrology is valid. (BT Shabbat 156a). Midrash Genesis Rabbah states that Abraham was not an astrologer, but rather a prophet, inasmuch as only those beneath the stars could be subject to their influence; but that Abraham was above them (Genesis Rabbah xliv. 12). In general, many people quoted in the Talmud believed that in theory astrology had merit as some kind of science, but they were skeptical that astrological