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Index > Astronomy
 gravity jiyuuriyoku  satellite eisei  eclipse shiyoku  galaxy ginga  nebula seiun  Uranus tenousei  atmosphere taiki  asteroid shiyouwakusei  astronaut uchiyuuhikoushi  astronomer tenmongakushiya  astronomy tenmongaku  weather tenki  explosion bakuhatsu  cold samusa  cold tsumetai  comet suisei  constellation seiza  universe uchiyuu  crater funkakou  distance kiyori  Earth yochi  ellipse daen  equator sekidou  fossil fuel kasekinenriyou space uchiyuu  parallel heikousen  ozone ozon  planet wakusei  planetarium tenshiyougi  rocket roketuto  scientist kagakushiya  telescope bouenkiyou  sextant rokubungi  sky uro  sphere tama star kousei  wavelength hachiyou  zenith tenchiyou  density mitsudo  map chizu  Venus kinsei  Mars kasei  Jupiter mokusei  Saturn dosei  Neptune kaiousei  Pluto meiousei  curve wankiyoku outburst totupatsu  Moon tsuki  sun taiyou |
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