差商 chā shāng (math.) difference quotient / (math.) divided difference / (math.) finite difference 空间 空間 kōng jiān space / room / (fig.) scope / leeway / (astronomy) outer space / (physics, math.) space syn 次数 次數 cì shù number of times / frequency / order number (in a series) / power (math.) / degree of a polynomial (math.) 参量 參量 cān liàng parameter (math) / quantity used as a parameter / modulus (math.) 偏微分 piān wēi fēn (math.) partial differential / (math.) partial derivative 巨星 jù xīng (astronomy) giant star / (fig.) superstar (of opera, basketball etc) syn 黑洞 hēi dòng (astronomy) black hole 天文 tiān wén astronomy 中天 zhōng tiān culmination (astronomy) syn 新星 xīn xīng (astronomy) nova / (fig.) new star / rising star syn 水星 shuǐ xīng (astronomy) Mercury 实测 實測 shí cè to take measurements / measured (speed etc) / observed (as opposed to "estimated") / observational (astronomy) 黑子 hēi zǐ black piece (in Chinese chess) / black stone (in Go) / (astronomy) sunspot syn 白道 bái dào (astronomy) the moon's path around the earth / legitimate, lawful activities (contrasted with 黑道[hei1dao4]) / law-abiding citizenry 天文学 天文學 tiān wén xué astronomy 星宿 xīng xiù constellation (arch., now 星座) / one of the 28 constellations of traditional Chinese astronomy and astrology / motion of stars since one's birth (predetermining one's fate in astrology) syn 斗牛 dǒu niú Big Dipper and Altair (astronomy) 黄道 黃道 huáng dào (astronomy) the ecliptic 开光 開光 kāi guāng eye-opening ceremony for a religious idol (Buddhism) / to consecrate / to bless / transparent / translucent / haircut / shaving the head or face (humorous) / a method of decoration / first light (astronomy) 启明星 啟明星 qǐ míng xīng (astronomy) Venus syn 十二宫 十二宮 shí èr gōng the twelve equatorial constellations or signs of the zodiac in Western astronomy and astrology, namely: Aries 白羊[Bai2 yang2], Taurus 金牛[Jin4 niu2], Gemini 雙子|双子[Shuang1 zi3], Cancer 巨蟹[Ju4 xie4], Leo 獅子|狮子[Shi1 zi3], Virgo 室女[Shi4 nu:3], Libra 天秤[Tian1 cheng4], Scorpio 天蠍|天蝎[Tian1 xie1], Sagittarius 人馬|人马[Ren2 ma3], Capricorn 摩羯[Mo2 jie2], Aquarius 寶瓶|宝瓶[Bao3 ping2], Pisces 雙魚|双鱼[Shuang1 yu2] 光斑 guāng bān facula (astronomy) 星群 xīng qún (astronomy) asterism 射电 射電 shè diàn radio wave (astronomy) 火流星 huǒ liú xīng (astronomy) bolide / fireball 室 shì room / work unit / grave / scabbard / family or clan / one of the 28 constellations of Chinese astronomy syn 浑天仪 渾天儀 hún tiān yí armillary sphere (astronomy) syn 岁差 歲差 suì chā (astronomy) precession 鬼 guǐ disembodied spirit / ghost / devil / (suffix) person with a certain vice or addiction etc / sly / crafty / resourceful (variant of 詭|诡[gui3]) / one of the 28 constellations of ancient Chinese astronomy syn 翼 yì wing / area surrounding the bullseye of a target / to assist / one of the 28 constellations of Chinese astronomy / old variant of 翌 syn 奎 kuí crotch / 15th of the 28th constellations of Chinese astronomy 娄 婁 lóu surname Lou / one of the 28 lunar mansions in Chinese astronomy 曜 yào bright / glorious / one of the seven planets of premodern astronomy syn 北斗七星 běi dǒu qī xīng (astronomy) Big Dipper 红移 紅移 hóng yí red shift (astronomy) 南十字座 nán shí zì zuò (astronomy) the Southern Cross 脉冲星 脈衝星 mài chōng xīng pulsar (astronomy) 七曜 qī yào the seven planets of premodern astronomy (the Sun, the Moon, Mercury, Venus, Mars, Jupiter, and Saturn) 三合星 sān hé xīng (astronomy) triple star system 主序星 zhǔ xù xīng (astronomy) main-sequence star 十二时辰 十二時辰 shí èr shí chen twelve divisions of the day of early Chinese and Babylonian timekeeping and astronomy 司天台 司天臺 sī tiān tái Observatory or Bureau of Astronomy (official title) from the Tang dynasty onwards 圆轨道 圓軌道 yuán guǐ dào circular orbit (in astronomy and in astronautics) 土曜日 tǔ yào rì Saturday (used in ancient Chinese astronomy) 巨蛇尾 jù shé wěi (astronomy) Serpens Cauda 恒星年 恆星年 héng xīng nián the sidereal year (astronomy) / the year defined in terms of the fixed stars 日曜日 rì yào rì Sunday (used in ancient Chinese astronomy) 暗星云 暗星雲 àn xīng yún (astronomy) dark nebula / absorption nebula 月曜日 yuè yào rì Monday (used in ancient Chinese astronomy) 木曜日 mù yào rì Thursday (used in ancient Chinese astronomy) 水曜日 shuǐ yào rì Wednesday (used in ancient Chinese astronomy) 波霎 bō shà (astronomy) pulsar 浑天说 渾天說 hún tiān shuō geocentric theory in ancient Chinese astronomy 火曜日 huǒ yào rì Tuesday (used in ancient Chinese astronomy) 荧惑星 熒惑星 yíng huò xīng Mars in traditional Chinese astronomy 秒差距 miǎo chā jù parsec (astronomy) 罗睺 luó hóu the intersection of the Moon's orbit with the ecliptic in Vedic astronomy (Sanskrit rahu) 蓝移 藍移 lán yí blue shift (astronomy) 计都 計都 jì dū concept from Vedic astronomy (Sanskrit Ketu), the opposite point to 羅睺|罗睺[luo2 hou2] / imaginary star presaging disaster 转浑天仪 轉渾天儀 zhuàn hún tiān yí armillary sphere (astronomy) 辰星 chén xīng Mercury in traditional Chinese astronomy / see also 水星[shui3 xing1] 金曜日 jīn yào rì Friday (used in ancient Chinese astronomy) 儒略日 rú lüè rì Julian day (astronomy) 赫罗图 赫羅圖 hè luó tú (astronomy) Hertzsprung-Russell diagram 暗能量 闇能量 àn néng liàng (astronomy) dark energy 拱点 拱點 gǒng diǎn (astronomy) apsis / apse 星盘 星盤 xīng pán (astronomy) astrolabe / (astrology) horoscope / astrological chart 距角 jù jiǎo elongation (astronomy) 周髀算经 周髀算經 zhōu bì suàn jīng Zhou Bi Suan Jing, or Chou Pei Suan Ching, one of the oldest Chinese texts on astronomy and mathematics 天平动 天平動 tiān píng dòng (astronomy) libration 国际天文学年 guó jì tiān wén xué nián International Year of Astronomy 环境对天文学的负面影响国际专题讨论会 International Symposium on Adverse Environmental Impacts on Astronomy 地外天文学 地外天文學 extraterrestrial astronomy 射电天文学探索者卫星 射電天文學探索者衛星 shè diàn tiān wén xué tàn suǒ zhě wèi xīng radio astronomy Explorer 通过天文学发展教育计划 通過天文學發展教育計劃 Initiative to Develop Education through Astronomy 红外天文学 紅外天文學 infrared astronomy 雷达天文学 雷達天文學 radar astronomy 天底 tiān dǐ (astronomy) nadir 视亮度 視亮度 shì liàng dù apparent brightness (astronomy) 主序带 主序帶 zhǔ xù dài (astronomy) main sequence 复明 復明 fù míng to regain one's eyesight / (astronomy) emersion syn 角宿一 jiǎo xiù yī (astronomy) Spica 周日圈 zhōu rì quān (astronomy) diurnal circle 周日运动 周日運動 zhōu rì yùn dòng (astronomy) diurnal motion 母星 mǔ xīng (science fiction) home planet / (astronomy) parent star 近拱点 近拱點 jìn gǒng diǎn (astronomy) periapsis 远拱点 遠拱點 yuǎn gǒng diǎn (astronomy) apoapsis 一次 yī cì first / first time / once / (math.) linear (of degree one) 数量 數量 shù liàng amount / quantity (CL:個|个[ge4]) / quantitative / (math.) scalar quantity syn 组合 組合 zǔ hé to assemble / to combine / to compose / combination / association / set / compilation / (math.) combinatorial syn 指数 指數 zhǐ shù (numerical, statistical) index / (math.) exponent / index / exponential (function, growth) 内心 內心 nèi xīn heart / innermost being / (math.) incenter syn 交换 交換 jiāo huàn to exchange / to swap / to switch (telecom) / commutative (math) / to commute syn 元素 yuán sù element (key component of sth) / (chemistry) element / (math.) element (member of a set) syn 联络 聯絡 lián luò to get in touch with / to contact / to stay in contact (with) / liaison / (math.) connection syn 函数 函數 hán shù function (math.) syn 传递 傳遞 chuán dì to transmit / to pass on to sb else / (math.) transitive syn 不变 不變 bù biàn constant / unvarying / (math.) invariant syn 分子 fēn zǐ molecule / (math) numerator of a fraction syn 