| 单词 | companion star |
| 释义 | > as lemmascompanion star 11. Astronomy. Originally: †a satellite of a planet (obsolete). In later use (also companion star): the less luminous member of a binary (or multiple) star system.The early references to the ‘Companions of Saturn’ arise from Galileo's misinterpretation of the rings of Saturn as satellites. ΘΚΠ the world > the universe > star > kind of star > by position > [noun] > companion companion1656 comes1782 acolyte1844 1656 tr. T. White Peripateticall Inst. iii. xvii. 186 All those that belong to our Great Orbe either are mov'd about the Sun, as being certain other Earths: or else about other Stars, as the Moon about the Earth; such as are the Medicean Stars, and the Companions of Saturn. 1661 T. Salusbury tr. Galileo Syst. World in Math. Coll. & Transl. I. 334 Then the four Medicean Planets, and the companions of Saturn came first into Heaven, when we began to see them, and not before? 1682 N. Sanson Cosmogr. & Geogr. iii. xxxi. 302 Then the Ephemerides of these Companions of Jupiter must be consulted, and the hour, and scruples of hours thence taken. 1782 W. Herschel in Philos. Trans. (Royal Soc.) 72 161 I have used the expression double-star in a few instances of the sixth class in rather an extended signification... I preferred that expression to any other, such as Comes, Companion, or Satellite; because, in my opinion, it is much too soon to form any theories of small stars revolving round large ones.] 1796 W. Herschel in Philos. Trans. (Royal Soc.) 86 134 The north following star must be of the 11th or 12th magnitude at least..and its smaller companion therefore is an extremely small star indeed. 1827 J. F. W. Herschel in Mem. Astron. Soc. London III. 182 The star..was particularly pointed out to my notice..as one of the utmost difficulty, from the smallness of its companion. I saw it, however, double, without the least difficulty. 1867 W. A. Norton Treat. Astron. (ed. 4) xix. 256 Sirius is the largest of the double stars. It is attended by a minute companion star, at a distance of 10″. 1902 Encycl. Brit. XXV. 752/1 Partial eclipses caused by the interposition of a dark companion moving around them [sc. stars of the Algol type]. 1964 R. H. Baker Astron. (ed. 8) xiv. 414 A common type of triple system is represented by Alpha Centauri, where the binary is attended by a remote companion, Proxima. 1989 R. Penrose Emperor's New Mind (1991) vii. 330 The most famous white dwarf is the companion of Sirius. 2010 Space Daily (Nexis) 20 Aug. Astronomers using NASA's Rossi X-ray Timing Explorer (RXTE) have found the first fast X-ray pulsar to be eclipsed by its companion star. < as lemmas |
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