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Mercury surface 缺觀測資料 Data gap &'()Mean radius * 0.38Re +,-.()Mean distance from the Sun ~ 0.387AU/! (1AU = 012/Mean distance between Sun and Earth 3,"
水星凌日 Transit of Mercury 平均每七年才可見到一次 Average occurrence rate: every 7 years 8&" Mercury!4567" Sunspots 8&" Mercury!4567" Sunspots -"
Orbit of inner planet Sun Inner planet Earth s orbit Earth '"
Mariner 10 & MESSENGER 9:;<=&>?@ABC8& using the gravity of Venus to adjust its route to Mercury. (The so called "gravitational slingshot") MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging), D2004EFG launched on 2004 HIEJKL0'MNO0'?@A.P=&M A fly-by of the Earth in 2005 Q=�'RSTUVWXY.MZ[\KL =&]MNO=&?@A.P8& fly-by of Venus in October 2006 & June 2007 Q^_`a8&>RSLbcMIdKL8&e \f01/2008,10/2008,09/20093mghijkl fly-by of Mercury on January 14, 2008, October 6, 2008, September 29, 2009. mdqne 2011EeoMpq8&RS#8& IrY.Mstuvwwxy8&z entered the orbit around the Mercury on March 18, 2011.."
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UV image of Venus 金星Venus SAR Obs. of Venus SAR 觀測金星 利用 合成口徑雷達 (SAR), 可以測出地表微量的高低起伏變化 也用來探測被雲遮蓋之金星地表結構 SAR observations can see the surface of the Venus under the thick cloud.!("
金星上可能的火山活動 Possible Volcanic Activity on Venus! http://www.visionsofthecosmos.co.uk/venus.htm!)"
金星電離層 Venus ionosphere 金星與地球差不多大 但是在太陽風中 金星所佔的空間 就小多了 可由艏震波的大小來估算 Although the size of Venus is about the size of the Earth, but without the magnetosphere, the bow shock of the Venus is much smaller than the bow shock of Earth.!*"
地球 Earth!+"
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Cassini Observation of Saturn s Hexagon at North Pole 2006 2009 Dec. 2009 Feb. (-"
Saturn s Hexagon at North Pole 2009 Dec. 牛津大學學者做出八角 形環型駐波氣流結構 2010/04 Ａ hexagonal shaped flow by Ana Claudia Barbosa Aguiar and Peter Read ('"
天王星 Uranus! 天王星公轉一周 地球過85年 Orbital period of Uranus 85 years http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-uranus.html! 被打散後重新結合 %著打轉! its axis of rotation is tilted sideways http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranringfact.html (."
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Ganymede ({ e) Jupiter III **"
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Galilean moons Io ({ I) Europa ({ [) Ganymede ({ e) Callisto ({ }) *,"
Enceladus 土衛二 Saturn II *-"
Enceladus 土衛二 Saturn II *'"
Enceladus 土衛二 Saturn II *."
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Titan 泰坦(土衛六 最像地球 Saturn VI +!"
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Near Side Far Side +*"
太陽系小星體Small Solar System Body 矮行星 彗星 小行星 流星體 Dwarf Planets, Comets, Asteroids, Meteoroids!! 小行星帶 Asteroid Belt 介於火星 與 木星之間 between Mars and Jupiter 古柏帶 Kuiper belt 位於海王星外 trans-neptunian objects! 矮行星Dwarf Planets: 體積比較大 具有圓形外觀, regular shape! 古柏帶中的大星體 Large object in the Kuiper belt 例如 冥王星 Pluto! 小行星帶中的大星體 Large object in the asteroid belt 例如 穀神星 Ceres! 彗星Comet: 有彗髮 Comet hair 彗尾 Comet tail! 分為長週期彗星Long-Period Comets 短週期彗星Short-Period Comets! 小行星Asteroids: 無彗髮 no comet hair 無彗尾 no comet tail, 外觀不規則 不"圓 irregular shape!? 流星體 Meteoroid : size smaller than an asteroid!!!! 流星雨 Meteor shower: 地球軌道與彗星軌道接近時彗星殘留物 落入地球大氣燃燒 呈現流星 隕石坑 Meteor Crater : meteorite impact crater 隕石Meteorite : 落入地球沒有燒完之的流星 小行星 或其他類似的天體 A portion of a meteoroid or asteroid that survives its passage through the atmosphere and impact with the ground without being destroyed. ++"
火星與木星之間的小行星帶 & 木星的特洛依小行星帶 五個拉格朗日點 The five Lagrangian points Asteroid Belt & Jupiter Trojans L4 and L5 又稱為特洛依點 Trojan points. Trojan moons:!土星有三顆特洛依衛星 Saturn has 3 Trojan moons Trojan asteroids:!木星有多顆特洛依小行星 Numerous Jupiter Trojans have been found.!火星軌道上有3顆特洛依小行星 Three Mars Trojans have been found.!海王星軌道上有8顆特洛依小行星 Eight Neptune Trojans have been found.!地球軌道上已經發現了1顆特洛依小行星 One Earth Trojan at L4 has been found in 2011 +,"
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