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第二章 太空中的地球 PowerPoint PPT Presentation


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第二章 太空中的地球. 認識天文單位 太陽系概論 天體的運動 天體的研究 宇宙概論. 認識天文單位. 天文單位(AU): 太陽與地球的平均距離 約一億五千萬公里 1.5 ╳ 10 8 km. 光速 & 光年 (ly). 光速 ( c ) : 3 ╳ 10 8 m/s 光年 (ly) : 光跑一年的距離 約10兆公里 9.46 ╳ 10 12 km. 以 官制 、 民間器物名稱 為主,將星空假想成人類社會的倒影。 以天北極為皇宮中心 分 三垣、四象、 二十八星宿 。. 天體命名 ( 中式 ). 紫微垣、 太微垣、 天市垣。.

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第二章 太空中的地球

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  • 1.5 108km


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&(ly)

  • ( c )3 108m/s

  • (ly)9.46 1012km


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88

()


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>200yr

<200yr


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VS

  • ()

  • (2AU>)

  • (>10AU)

  • (H2HeCH4NH3)

  • (1AU>)

  • (>10AU)


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VS


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VS

  • (0~2)

  • (10)

  • (>24hr)

  • (20hr>)


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VS

  • (0~2)

  • (10)

  • (>24hr)

  • (20hr>)


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VS

  • (0~2)

  • (10)

  • (>24hr)

  • (20hr>)


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  • Mercury

  • Venus

  • Earth

  • Mars


Mercury

(-170 ~ 450 )

(Mercury)


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Venus

(Venus)


Venus1

(Venus)


Venus2

(Venus)


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Earth

(Earth)


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(Mars)


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(Mars)


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  • Jupiter

  • Saturn

  • Uranus

  • Neptune


Jupiter

(Jupiter)


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Saturn

(Saturn)


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Uranus

(Uranus)


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Neptune

(Neptune)


Pluto

(Pluto)

  • 17


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  • -18


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