On August 24th, International Astronomical Union (IAU) carried that they eliminate Pluto from the planets in the solar system. It sounds like big historical change for astronomy, but it doesn’t affect my life at all even if a planet is eliminated or added, I think.
By the way, there is interesting way to memorize 9 planets including Pluto in English. “My Very Educated Mother Just Showed Us Nine Planets” for example is well-know method, I heard there are several different saying like “…served us 9 pies” and “…served us nothing!”
In Japanese there is also one way to memorize 9 planets. That is “Sui Kin Chi Ka Moku Do Ten Kai Mei (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto)” It may sound like Okyoh, but every Japanese people learns this at school, and can say anytime.
Sui Suisei (水星) Mercury
Kin Kinsei (金星) Venus
Chi Chikyu (地球) Earth
Ka Kasei (火星) Mars
Moku Mokusei (木星) Jupiter
Do Dosei (土星) Saturn
Ten Tennousei (天王星) Uranus
Kai Kaiousei (海王星) Neptune
Mei Meiousei (冥王星) Pluto
I think English version is much easier to memorize 9 planets. What about you? Are there any ways to remember 9 planets in your country?
If you are interested in 9 planets in Japanese, why don’t you remember them using “Sui Kin Chi Ka Moku Do Ten Kai Mei”?
Suisei (Mercury), Kinsei (Venus), Kasei (Mares), Mokusei (Jupiter), Dosei (Saturn) are visible with naked eyes, and they are considered as different from stars which make constellation. These Japanese names come from the thought in China. In China, people thought all things are constructed with 5 element; tree, fire, soil, gold and water. Therefore, Suisei is with water, Kinsei is with Gold, Kasei is with fire, and Mokusei is with tree and Dose is wit soil Chinese characters.
Tennessee (Uranus), Jalousie (Neptune) and Meioses (Pluto) are not visible with naked eyes, so they were discovered after telescope was invented. These names were simply translated from English name.