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单词 arcsecond
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Examples ofarcsecond

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The parsec (3.26 light-years) is defined as the distance for which the annual parallax is 1arcsecond.
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The companion has an apparent brightness of 7.3 at an angular distance of 3.2 arcseconds.
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At an angular separation of 3.25 arcseconds is a magnitude 8.76 companion star.
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In the infrared the integrated image can resolve down to 0.0005 arcseconds.
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As of 2007, the two stars had an angular separation of 1.206 arcseconds at a position angle of 35.
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The accuracy defined as the accumulated error per revolution is 25 arcseconds.
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It has a core radius of 48 arcseconds and a half-mass radius of 147 arcseconds (2.5 arcminutes).
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The asteroid was photographed with a faint halo 30 arc-seconds across.
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The companion is an eighth magnitude star located 3.1 arcseconds away.
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This system will produce diffraction-limited images over a 30arcseconddiameter field-of-view.
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The pair are optically separated by 3.6 arcseconds, giving the real separation as 21 kpc.
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The two stars are 14.1 arcseconds apart in the sky.
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The spatial sampling scale at the detector is 44m perarcsecondgiving a field of view of about 10.5 arcminutes on the side.
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It has an optical companion, a twelfth magnitude star located 5.5 arcseconds away.
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A visual autocollimator can measure angles as small as 0.5arcsecond, while an electronic autocollimator can be up to 100 times more accurate.
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It has an 11th magnitude companion 182 arcseconds from the primary.
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The second is an 11th magnitude star at a separation of 177 arcseconds with a position angle of 5.
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The primary and secondary have a separation of 6.7 arcseconds at an angle of 319 degrees.
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However, this is still a very small movement overall, as there are 3,600 arcseconds in a degree of arc.
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Observations have been made of weak gravitational lensing, in which light rays are deflected by only a few arcseconds.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2024/12/28 2:06:22