類小行星天體 的英文怎麼說
中文拼音 [lèixiǎohángxīngtiāntǐ]
類小行星天體
英文
asteroid-like object- 類 : Ⅰ名1 (許多相似或相同的事物的綜合; 種類) class; category; kind; type 2 (姓氏) a surname Ⅱ動詞...
- 小 : Ⅰ形容詞1 (體積、面積、數量、強度等不大) small; little; petty; minor 2 (年紀小的; 年幼的) youn...
- 行 : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
- 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...
- 體 : 體構詞成分。
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Pluto together with ceres an asteroid and eris a kuiper belt object are dwarf planets
冥王星連同穀神星小行星和厄里斯柯伊伯帶天體則歸類為矮行星。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The asteroids are the most important small bodies in the solar system, 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
摘要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。Because some brighten or dim significantly in less than a day, their energy - producing regions must be no larger than the distance light can travel in a day ? about the size of our solar system
由於某些類星體在不到一天的時間里明顯增亮或變暗,其產能區應該不會比光一天行進的距離長,即約為我們太陽系的大小。Asteroid - like object
類小行星天體“ we do believe that within 10 to 15 years we will find the first planet that is small and earth - like. ” said astrophysicist lisa kaltenegger and wes traub have analyzed the atmospher ic gases keyed to life over earth history, creating something that fingerprint for life
「我們確信10到15年後,我們將會發現第一顆小型的類地行星, 」天文物理學家莉薩和韋斯對大氣物質進行了分析,這些氣體對地球上的生命有關鍵的作用? ?創造出了生命痕跡。分享友人