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1.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus; the eight(yes 8, not 9) planets in our solar system.

See also: MVEMJSUNP, as well as mnemonic devices "My Very Excellent Mother Just Sent Us Nine Pizzas" & "My Very Erotic Master Just Showed Up Naked".
MVEMJSUNP is no longer correct, as Pluto is no longer considered a planet by definition. Instead of "My Very Excellent Mother Just Sent Us Nine Pizzas" it'll start having to be, Hmm, "My Very Erotic Master Just Showed Up Naked" instead.
by Vroon September 07, 2006