iLuna: the astrological lunar calendar. The phase of the Moon, the sign of the Moon and the void-of-course period for many years

Planetary Hours And Days

Planets and the Days of the Week

The conception of Planetary Days and Hours is one of the most ancient in astrology. The names for the days of the week have an obvious planetary connotation. Isn't it obvious that Monday is ruled by the Moon, Saturday - by Saturn and Sunday - by the Sun? In French, the planetary rulership of some days of the week is even more explicit: lundi for Monday, the day of the Luna, mardi for Tuesday, the day of Mars, mercredi for Wednesday, the day of Mercury, jeudi for Thursday, the day of Jupiter, vendredi for Friday, the day of Venus. In fact, the names of the days of the week in English bear the same meaning, just in a less explicit form. Say, Tuesday is so named because it's a "Tiw's day", and Tiw is a god in Norse mythology who is quite similar to Roman god Mars. You can read more about planetary associations of the days of the week in different languages in this excellent article.

When centuries ago Gregorian calendar was adopted in many countries of Europe, special care was taken to ensure that the sequence of the days of the week, and the sequence of their planetary rulers, remained unaltered. So it can be said that this sequence comes to us from time immemorial.

Here is a table that presents the rulers of the days of the week and their symbols in a consize format:

Sunday Sun The Sun
Monday Moon The Moon
Tuesday Mars Mars
Wednesday Mercury Mercury
Thursday Jupiter Jupiter
Friday Venus Venus
Saturday Saturn Saturn

This sequence of the planetary rulers of the days of the week follows the beams of seven-point star, or heptagram, also known as the Star of the Magi:

The Star of the Magi

In fact, the sequence of the planetary rulers of the days of the week is a result of another, even more fundamental sequence - the sequence of the Planetary Hours.

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