The planetary mnemonic refers to the phrase used to remember planets and dwarf planets of the Solar System, with the order of words corresponding to the growing periodic bodies of celestial bodies.
One simple visual mnemonic consists of holding both hands next to each other with spread fingers and thumbs in the same direction, with fingers of one hand depicting Earth’s planets, and on the other hand with gas giants.
The English-language mnemonic that was present in the 1950s: “Men very easily make jugs, serving their needs, perhaps” (for Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto).
The structure of this sentence suggests that it could have been created before the discovery of Pluto and could easily be withdrawn to reflect the degradation of Pluto.
Another popular English memory for many years “My very elegant mother just sat on nine pins”. Other mnemonics are “My very energetic mothers are jumping on skateboards under Nana’s patio,” and Mary’s “purple eyes make Johnnie spend her night in meditation.
The apt is very easy technique appear us only nine planets”, “My Very efficient memory allows only to remember nine planets “and” my very easy method only speeds up coming up with the planet
Another option that may precede the discovery of Pluto is “Mary’s purple eyes make Johnny spend the night wondering” and this can also be cut back. Still, another is “some volcanoes emulate sandwiches with ample jam under normal pressure.
However, many of these mnemonics have become outdated thanks to the 2006 definition of the planet, which has reclassified Pluto (in the same way as Ceres and Eris) as a dwarf planet.