The order in which days of the week follow each other, bears the indelible imprint of the ancient astronomical system on which the planets were placed to continue to Earth, the longer was the time of their apparent references in the sky. Thus, in this system, the moon was the nearest planet, followed by Mercury, followed by Hungarians and then the Sun, which is also considered a planet, finally, in the same order, Mars, Jupiter and Saturn. Since the Greeks, especially Aristarchus of Samos, and the device of the Alexandrian Museum, you can not find any trace of methodically made observations and measurements, then it was a large differences in hypotheses about the order of the planets and their relative distance: as distance from the rest in the center of the Earth to the system, the most dominant, or, as the Pythagoreans – of distance from the center of the World, Neztla. Especially ranged in opinion regarding the place of the sun, that is in its relative position with flax to the lower planets and the Moon. Adopted by the sequence of the planets were different.
In the cuneiform texts of the Seleucid period, the standard position of the planets is as follows: Jupiter – Venus – Mercury – Saturn – Mars. The reasons for this order are unknown, given by the usual explanation that the first two planets are favorable, the last two – are unfavorable, and Mercury is questionable, in the cuneiform sources is not found. The Greek horoscopes usual procedure is: Sun – Moon – Saturn – Jupiter – Mars – Venus – Mercury, except in cases where the location is chosen for this special horoscope, depending on the situation at the moment of celestial bodies including the Zodiac.