What did the Holy One, blessed be He, do, so that there should be peace between them? He made the one larger and the other smaller, as it is said, "The greater light to rule the day, and the lesser light to rule the night and the stars he also made" (ibid.).
All the stars minister to the seven planets, and their names are: Sun, Venus, Mercury, the Moon, Saturn, Jupiter, Mars. The mnemonic of their service is KZNSh ChLM, by night; ChLM KZNSh by day and KLSh ZMChN for the hours of the night; ChNKL ShZM for the hours of the day. On the first day Mercury and the Sun, on the second day Jupiter and the Moon, on the third day Venus and Mars, on the fourth day Saturn and Mercury, on the fifth day the Sun and Jupiter, on the sixth day the Moon and Venus, on the seventh day Mars and Saturn. All of them minister to the twelve constellations which correspond to the twelve months. The constellations are: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius, and Pisces. All the constellations minister to the days of the sun. Now the days of the solar month are 30 days, 10 hours and a half, and each constellation ministers to the || days of the solar month for two days and a half, so that two constellations (minister for) five days. The chief which begins at the beginning of the solar month is the same chief which completes at the end of the solar month; the one which opens is the one which closes.