英语词汇“astrometric companion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

2. Designating a binary system in which one of the two objects is too faint or too close to the other to be observed directly, and is recognized only by its effect on the motion of its brighter partner; designating a component of such a system. Chiefly in astrometric binary, astrometric companion.

ΚΠ

1944 Proc. Amer. Philos. Soc. 88 374/2 As to the newly discovered astrometric binaries, the periods, shorter that for any known visual binary, need not cause surprise.

1971 Nature 27 Aug. 611/1 Because objects with M ≲ 0.1M_☉ never burn hydrogen, they are almost undetectable except as astrometric companions to nearby dwarf stars.

1977 Sci. Amer. (U.K. ed.) Apr. 96/3 A star showing this kind of motion may be a member of a pair. A stellar system of this kind is called an astrometric double.

2005 J. Mullaney Double & Multiple Stars ii. 16 The relatively long time spans required for the discovery and subsequent study of astrometric binaries has caused many astronomers to leave the field.

单词	astrometric companion
释义	> as lemmas astrometric companion 2. Designating a binary system in which one of the two objects is too faint or too close to the other to be observed directly, and is recognized only by its effect on the motion of its brighter partner; designating a component of such a system. Chiefly in astrometric binary, astrometric companion. ΚΠ 1944 Proc. Amer. Philos. Soc. 88 374/2 As to the newly discovered astrometric binaries, the periods, shorter that for any known visual binary, need not cause surprise. 1971 Nature 27 Aug. 611/1 Because objects with M ≲ 0.1M_☉ never burn hydrogen, they are almost undetectable except as astrometric companions to nearby dwarf stars. 1977 Sci. Amer. (U.K. ed.) Apr. 96/3 A star showing this kind of motion may be a member of a pair. A stellar system of this kind is called an astrometric double. 2005 J. Mullaney Double & Multiple Stars ii. 16 The relatively long time spans required for the discovery and subsequent study of astrometric binaries has caused many astronomers to leave the field. extracted from astrometricadj. < as lemmas
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> as lemmas