恆星光度計 的英文怎麼說
中文拼音 [héngxīngguāngdùjì]
恆星光度計
英文
astrophotometerastrometer- 恆 : Ⅰ形容詞1 (永久; 持久) permanent; lasting 2 (平常; 經常) usual; common; constant Ⅱ名詞1 (恆心...
- 星 : 名詞1 (夜晚天空中閃爍發光的天體) star 2 [天文學] (宇宙間能發射光或反射光的天體) heavenly body...
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 恆星 : [天文學] fixed star; star恆星大氣 stellar atmosphere; 恆星導航 star navigation; stellar guidance;...
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By comparing the absorption lines from a star to those obtained in a laboratory, we can tell whether the star is moving away or towards us and how fast the star is moving
只要比對恆星光譜中吸收線的波長和實驗室中同一物質的吸收線波長,我們便可以計算出天體究竟以甚麼速度遠離或接近我們。Various astronomers, including us, have now surveyed large numbers of fledgling brown dwarfs in nearby young star - forming regions and clusters ( where stars ' ages can be estimated from their color and brightness ), looking for this infrared excess
現在,包括我們在內的許多天文學家,已經在鄰近的年輕恆星形成區域和星團(在那裡恆星的年齡可由顏色與亮度來估計)里,檢視了大量初生未久的棕矮星,尋找過量的紅外光。Miscalculations did always happen, as it is difficult to accurately measure factors like the luminosity of the visible stars in the pairs and the tilting of the orbits
過去天文學家往往因為無法準確量度可見恆星的光度和軌道傾斜度等因素而錯誤地估計了黑暗天體的質量。
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