The planets usually analysed are the Sun, the Moon, Mercury, Venus, Jupiter, Saturn, Uranus, Neptune and Pluto, which means two luminaries the Sun and the Moon and 8 planets, a total of 10 planets.
It represents the governors, magistrates, professors, religious men too; the age of Jupiter goes from 50 to 55 or even 70 years old.
Their interpretation must be regarded with the utmost caution, especially given the fact that different authors give different meanings to symbolic degrees.