Pluto

Every interpretive statement about this body on this site is modern, because none of the books we use treats it as an astrological planet. It was found in 1930, and the name turns up in these texts only as a god, as in the Adams 1930 line quoted on this page, which concerns mythology. That leaves a gap in the record, and it would be dishonest to fill it with an old authority.

The calculation is plain. Its orbit takes about 248 years and is stretched enough that a sign can hold it for roughly twelve years or for more than thirty. Everyone born in those years shares the placement, so its sign marks a generation and the personal element lies only in its house and aspects. Astronomers reclassified it as a dwarf planet in 2006, and astrologers have mostly kept it.

Modern popular astrology associates it with power, loss and transformation, and calls it the ruler of Scorpio. No source here supports that rulership, which appeared after these books were written. Readers can take these as ideas from recent astrology that have no long tradition behind them.