The Greek mythology is nothing but a vast system of cosmographical astrology, and there is no other history in it than what you may read in the constellations of the heavens and the corresponding evolution of the human race. Hipparchus, Hippocrates, Thales, Galenius, and others subscribed an intelligent belief in its principles.To Claudius Ptolemy, however, we are indebted for the first concise and scientific statement of its principles and practice, so far as Europe is concerned.
Uranus completes its orbital revolution in 84 years, Jupiter in 12 years, Mars in about 15 months, Venus in 11 months, and Mercury in 18 weeks.
As far back as the year 2154, we find mention of the great importance attaching to the celestial phenomena in the minds of Chinese rulers.
It is recorded in the Historical Classic of China that at that time the astrologers Hi and Ho neglected their duties so that when, on the 10th of October, there was a great eclipse of the Sun at Peking between seven and nine o’clock in the morning, the people were wholly unprepared for it, and “ran about here and there in the utmost consternation.” For this offence Hi and Ho were deprived of their offices, their estates were confiscated and they were driven from the kingdom.
The literature of the subject is considerable, and the present writer only takes credit to himself so far as his own wide experience and practice have enabled him to present the subject in a simple and brief manner.
The luminaries and planets are known to astronomers under the following names and symbols:— The Sun ☉, Moon ☽, Neptune ♆, Uranus ♅, Saturn ♄, Jupiter ♃, Mars ♂, Venus ♀, and Mercury ☿.