星等 的英文怎麼說

中文拼音 [xīngděng]
星等 英文
[天文學] magnitude; star magnitude; stellar magnitude; brightness
  • 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...
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  1. We can also talk about the absolute magnitudes of objects like star clusters, galaxies, etc

    絕對星等的概念可推廣至星團星系等。
  2. For example, the apparent magnitude of our sun is - 26. 8, but its absolute magnitude is just 4. 8. the absolute magnitude describes the

    例如太陽的視星等為- 26 . 9等，但它的絕對星等只有4 . 8等。
  3. We know the luminosity is directly related to the absolute magnitude. so, in practice, we usually use absolute magnitudes instead

    由於光度和絕對星等有直接的對應關系，所以很多時赫羅圖會選用絕對星等。
  4. The hertzsprung - russell diagram serves this purpose. it is a plot of absolute magnitude against surface temperature i. e., spectral type of stars

    簡單來說，赫羅圖把大量恆星的絕對星等和表面溫度或譜型關系以圖表方式顯示出來。
  5. Two stars have the same absolute magnitude. one is thousand times farther away than the other. what is the difference in apparent magnitudes ? which magnitude larger

    兩顆星具有相同的絕對星等，其中的一顆比另一顆距離遠1000倍，它們的目視星等有何不同？哪一個的星等數值大？
  6. 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，只要知道某一造父變星的周期，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距離。
  7. A typical red supergiant could be about 100 times larger than the red giant. its surface temperature is low while the total luminosity remains high, with absolute magnitude up to - 10 comparing to 4. 8 of our sun

    典型的超紅巨星比普通紅巨星大上100倍，雖然表面溫度低，但整體光度仍然非常高，絕對星等可達- 10太陽的絕對星等只有4 . 8 。
  8. In astrometry, the term is applied to the difference between the observed position ( or magnitude ) of a reference star and the position ( or magnitude ) listed in the star catalog

    在天文上，本術語指的是觀測的參考星的位置（或星等）與星表上的該星的位置（或星等）的差值。
  9. Professional astronaut besides should operate in astronavigation drive spacecraft, arrive even outside cabin execute a few special missions, if have outer space, walk, discharge or repair a satellite to wait

    職業宇航員除了要在宇宙航行中操縱駕駛宇宙飛船，還要到艙外執行一些非凡的任務，如進行太空行走、施放或修理衛星等。
  10. At ancient times, people were navigated by means of sun, fixed stars, etc., while currently the common navigation systems are astronomic navigation, inertial navigation and radio navigation

    以前，人們主要利用太陽、星星等自然天體。現在人們利用的導航系統主要有：天文導航系統、慣性導航系統、無線電導航系統三大類。
  11. Some catalogs provide data on motions, variability, duplicity, etc.

    有的星表還提供了運動，是否變光以及雙星、聚星等等的資料。
  12. The sun, moon, stars, etc. are celestial bodies

    太陽、月亮、星星等都是天體。
  13. With this definition, pluto as well as eris, ceres, and charon plutos satellite are planets and we will have 12 planets with more to be confirmed

    可是若接受這簡單定義，冥王星厄里斯卡倫冥王星的？星將立即升格為行星，變成太陽系十二大行星，而有為數眾多的候選行星等待確認。
  14. China now has mature technologies to design and produce different types of orbital vehicles, such as scientific experimentation satellites, recoverable satellites, geostationary orbit communications satellites, and meteorological and earth resources satellites

    中國現擁有研製科學實驗衛星、返回式衛星、地球靜止軌道通信衛星、氣象衛星、資源衛星等設計和製造的成熟技術。
  15. Apart from the major planets, there are asteroids or minor planets, comets and many other things in our solar system

    在太陽系中，除了九大行星外，還有很多好像小行星彗星等小成員。
  16. This is the apparent magnitude of an object at some standard distance from us. this standard distance is chosen to be about 32 light years 10 parsecs, see below

    絕對星等是恆星距離為約32光年或10秒差距請參閱下一節時的星等。
  17. The most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. )

    近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深人到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞。
  18. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  19. The elegant selections for this year include : very large array in moonlight, the satellite rescue mission of space shuttle, north america nebula in cygnus, hong kong from space, comet halley in easter island, eagle nebula in serpens, and the supernova 1987a

    選輯的十二幅珍貴天文圖片包括：月色下的甚大天線陣太空梭拯救衛星任務天鵝座北美洲星雲太空中所見的香港復活節島上的哈雷彗星巨蛇座鷹狀星雲1987年所發現的超星等。
  20. The limiting magnitude must be entered on the data sheet. below is a table listing the magnitudes of the major stars in the constellation ursa minor

    在填寫記錄表的時候，需要填上當時可見到的最暗星等，附圖為小熊座各主星及其星等，可作為參考之用。
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