Barren sign Barren sign In astrology, a barren sign is a sign of the Zodiac that, according to ancient astrological tradition, is not likely to possess strong powers of procreation, i.e. they are "barren". The signs most associated with infertility are Gemini, Leo, and Virgo. In addition, Aries, Sagittarius, and Aquarius are also believed to quite often have problems in matters of reproduction and are therefore considered "semi-barren". William Lilly (1647) in CHAPTER CXVIII of his book "Christian Astrology" described the signs as follows: Aries: By reason Mars, a sterill planet hath that for his house, and the Sun for Exaltation, is
Zodiac fixed the zodiac in relation to stars, placing the beginning of Cancer at the "Rear Twin Star" (β Geminorum) and the beginning of Aquarius at the "Rear Star of the Goat-Fish" (δ Capricorni). The divisions do not correspond exactly to where the constellations started and ended in the sky; this would have resulted in an irregular division. The Sun in fact passed through at least 13, not 12 Babylonian constellations. In order to align with the number of months in a year, designers of the system omitted the major constellation Ophiuchus. Including smaller figures, astronomers have counted up to 21