1. Solar System 太陽系 P.6 2 nd Term General Studies Syllabus Produced by ： Thomas CHAI Yan Piau

2. Nebula

3. Nebulae

10. The Solar System consists of ： The Sun The Planets moving around the Sun The Satellites of the Planets Asteroids Comets Meteors & Meteoroids And Others ．．．．．

11. Touring the Solar System Sun Mercury Venus Earth Mars Jupiter Quit Saturn Uranus Neptune Pluto Moon Asteroids and Comets etc. Our Place in the Universe 太陽系的行星探索 柯氏太陽系

12. The Heart of the Solar System Sun ( 太陽 ) The Sun is the closest star to Earth and is the center of our solar system. A giant, spinning ball of very hot gas, the Sun is fueled by nuclear fusion reactions. The light from the Sun heats our world and makes life possible. The Sun is also an active star that displays sunspots, solar flares, erupting prominences, and coronal mass ejections. These phenomena impact our near-Earth space environment and determine our "space weather."

13. The Sun ( 太陽 ) Average Diameter Mass (Earth = 1) Density (water = 1) Moves Around Revolution Radius Revolution Period Rotation Period 1 390 000 km 333 000 1.41 The Centre of the Milky Way 3  10 17 km 200 000 000 years 25.4 days

16. Corona Animation

17. Solar Eruption

18. The Nine Planets ： (1) Mercury ( 水星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 4880 km 0.0553 5.43 57 900 000 km 88 days 58.7 days 0

22. Early Formation of Mercury

23. Final Stage in Mercury Formation

24. The Nine Planets ： (2) Venus ( 金星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 12 100 km 0.815 5.2 108 000 000 km 225 days 243 days 0

28. The Nine Planets ： (3) Earth ( 地球 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 12 700 km 5.976  10 24 kg 5.52 150 000 000 km 365 days (1 year) 0.997 day 1

33. The Earth’s Only Satellite ： Moon ( 月球 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period 3 480 km 0.0123 3.34 384 000 km 27.3 days

35. Apollo 16 landing on The Moon

36. Historical Moment --- First Men on The Moon

39. The Nine Planets ： (4) Mars ( 火星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 6 780 km 0.107 3.93 228 000 000 km 687 days (1.88 yrs) 1.03 days 2

42. The Nine Planets ： (5) Jupiter ( 木星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 140 000 km 318 1.33 778 000 000 km 4330 days (11.9 yrs) 0.414 day 16

45. Jupiter & it’s Moon --- Io

46. The Nine Planets ： (6) Saturn ( 土星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 116 700 km 95.2 0.69 1 430 000 000 km 10 800 days (29.5 yrs) 0.439 day 18

50. The Nine Planets ： (7) Uranus ( 天王星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 50 700 km 14.5 1.32 2 870 000 000 km 30 700 days (84 yrs) 0.718 day 15

53. The Nine Planets ： (7) Neptune ( 海王星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 49 200 km 17.1 1.64 4 500 000 000 km 60 230 days (165 yrs) 0.671 day 8

56. The Nine Planets ： (9) Pluto ( 冥王星 ) Average Diameter Mass (Earth = 1) Density (water = 1) Revolution Radius Revolution Period Rotation Period Number of Satellites 2 270 km 0.0021 2.05 5 910 000 000 km 90 500 days (248 yrs) 6.39 days 1

60. Asteroids ( 小行星帶 )

61. Comets ( 彗星 )

62. A comet attracted by the Sun

63. Meteors ( 流星 )

64. Meteorites ( 隕石 )

66. EndEnd of the Wonderful Tour Hope someday, somehow, we can have the real chance to visit our neighbourhood in the Universe!