造父距離 的英文怎麼說

中文拼音 [zào]
造父距離 英文
cepheid distance
  • : Ⅰ動詞1 (做; 製作) make; build; create; produce 2 (假編) cook up; fabricate; concoct 3 [書面語...
  • : 父名詞[書面語]1. (老年人) elderly man 2. (同「甫」,指人的表字) one's courtesy name3. (姓氏) a surname
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
  1. The longer the period, the brighter the star is. thus, by measuring the period of a cepheid variable, we know its absolute magnitude, hence, we can tell how far it is away by comparing with its apparent magnitude

    所以,只要知道某一變星的周期,我們便可得知它的絕對星等,只要和它的視星等作比較,便可以求得它和我們的
  2. Cepheid variables are dimmer than the type i supernova. as a result, the supernova allows us to measure the distances of galaxies further away, but it happens much less often

    I型超新星比變星光亮,所以能夠量度更遙遠星系的,唯一缺點是不經常有i型超新星爆發。
  3. We have to use some other methods to measure the luminosity or equivalently the absolute magnitude of the cepheid variable. since we can readily measure the apparent magnitude of a cepheid variable, to measure the luminosity means measuring the distance. we use some distance measurement methods, for example, parallax, to determine the relation

    要弄清這個關系,我們要知道不同變星的光度和光變周期數據,量度光變周期當然不是問題,但要得知一顆恆星的光度,我們首先要得知它的,這時便須藉助好像視差法等其他量度天體的方法。
  4. Except those celestial objects of several hundred light years, astronomers rely primarily on cepheid variables for measuring distances of celestial objects. using ground telescopes to gauge cepheid variables enable us to directly measure celestial objects within 20 to 30 millions light years. for more distant stars, other methods have to be used

    除了幾百光年內的星體外,天文學家很主要倚靠測量變星來計算天體的,利用地面望遠鏡測量變星,可直接給出約二三千萬光年內星體的,而對于更遙遠的星體,天文學家便要藉助其他方法,但這些方法還是需要利用變星來作校正。
  5. The hubble space telescope captured the light variation of o e of the cepheids inside the spiral galaxy m100 which is at a distance of 56 million light years away from earth

    地球五千六百萬光年的旋渦星系m100內,哈勃太空望遠鏡拍得當中一顆變星的光度變化
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