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See second1.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.arcsecond - a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here"
angular unit - a unit of measurement for angles
arcminute, minute of arc, minute - a unit of angular distance equal to a 60th of a degree
References in periodicals archive ?
The technology, called Arcus and that was developed by ArcSecond, Inc.
Each terrain parameter was produced at 1-arcsecond resolution and reduced to 3 arcseconds to serve the needs of the Soil and Landscape Grid of Australia, for compatibility with GlobalSoilMap specifications and to decrease data volume for easy distribution.
Previous data has been limited to 30 arcsecond cells, but for SVT, the cells are reduced to 9 arcseconds and Garmin is actually considering 6 arcsecond data.
With an angular measuring sensitivity of more than 1 arcsecond (0.
The nondispersivity condition therefore requires the sample to be aligned with arcsecond precision.
That corresponds to an angular jitter of roughly 1 arcsecond (1/3600[degrees]).
The typical spatial resolution of those observations is 15 arcseconds or larger (1 arcsecond corresponds to 1/3600 of 1 degree), however, ALMA achieved a high resolution of 3.
TheSky 6 allows angular measurements on the screen with an indicated precision of one arcsecond.
Several stars, within a few tenths of an arcsecond away, show clear orbital motion around this site.
The effort did not succeed in measuringthe actual supernova--though the observers still hope for a more positive result as they continue to refine their data analysis--but it did determine that the supernova was no bigger than two-thousandths of an arcsecond across.
I'm going to measure the Sun's deflection of starlight too, and to succeed I'll need to determine star positions accurate to a small fraction of an arcsecond, during only 140 seconds of totality, with no second chance if something goes wrong.
A 5-inch telescope can resolve details 1 arcsecond (1") across.