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天文學 Astronomy

as·tron·o·my --- n. pl. as·tron·o·mies (source: dictionary.com)

  1. The scientific study of matter in outer space, especially the positions, dimensions, distribution, motion, composition, energy, and evolution of celestial bodies and phenomena.
  2. A system of knowledge or beliefs about celestial phenomena: the various astronomies of ancient civilizations.

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[Middle English astronomie, from Old French, from Latin astronomia, from Greek astronomi : astro- (star) , astro- + -nomi, -nomy (law).] ( )bracket added by me.

天文熱點: Hot! 火星衝地球

    1. Hubble site
    2. 火星: 這個紅色是來自於佔火星土壤約10%的(氧化鐵)。而氧化鐵是由火星地面的鐵元素與來自於佔火星大氣中95%的二氧化碳所含的氧元素化合而成的。火星即將在8月27日到達近六萬年來距離地球最近的位置,因此近期內的火星會越來越大而且也越亮。
    3. Mars won't pass closer to Earth until 2287, according to astronomers.
    4. 火星觀測: 時間 8月27日 7:45 pm(日落) 8:95 pm(火星上升); 火星大衝(overhead) 8月28日1:39am
    5. 外觀偏紅的火星,會成為日落後東方天空中最明亮的天體。水瓶座附近;
    6. 望遠鏡所見: 按此(連續圖); 8月1,5,9日的比較; 真實近照: 水手峽谷 : 火星的大峽谷 ;(大圖);

其他專題:

  1. 發現太陽系第十行星: 太陽系應是八大行星(不是九大行星!),抑或是十大行星?
  2. 講章:宇宙性的救恩:宇宙因你傳奇 (天文學入手) : 會介紹由太陽系一直擴展到全宇宙.
  3. Galaxies (銀河系);
  4. Messier Catalogue (銀河分類圖由Messier首創)
  5. Clickable icon for Messier Catalogue
  6. Messier objects as in Sky Atlas and Sky Catalogue 2000.0 : arranged by M(x) numbering
  7. Messier Objects in the Uranometria 2000.0 (data from Deep Sky Field Guide) : arranged by the Nature of the galaxy/ objects.
  8. How many stars in the Universe? = 10 X (grains of sand on all the world's beaches and deserts) = 70 sextillion (= 7 followed by 22 zeros)
  9. 對天文有興趣的可到:每天一天文圖.