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arcsec

British  
/ ˈɑːksɛk /

noun

  1. 1/ 3600 of a degree of an angle

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Photon events from the afterglow were selected using a circular extraction region of radius 1 arcsec, while the background level of 2.3 × 10−6 counts arcsec−2 s−1 was estimated from nearby source-free regions.

From Nature • Oct. 15, 2017

How close to Uranus would a spacecraft have to get to obtain the same resolution as in Example 12.1 with a camera that has an angular resolution of 2 arcsec?

From Textbooks • Oct. 13, 2016

The average uncertainty for most Gaia parallaxes will be about 50 microarcsec, or 0.00005 arcsec.

From Textbooks • Oct. 13, 2016

The prediction of general relativity is that the direction of perihelion should change by an additional 43 arcsec per century.

From Textbooks • Oct. 13, 2016

The best parallaxes obtained with Hipparcos have an accuracy of 0.001 arcsec.

From Textbooks • Oct. 13, 2016

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