arcsecond


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  • noun

Synonyms for arcsecond

a 60th part of a minute of arc

References in periodicals archive ?
One arcminute is divided into 60 arcseconds (60"), which is about the resolution of the human eye.
26 light years), the distance at which an object has a parallax angle of one arcsecond.
It is called a SQM-L or a "Sky Quality Meter" which can quantitatively determine the brightness of the night sky in magnitudes per square arcsecond.
The companion proved to be less than two-tenths of an arcsecond from Polaris.
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.
Sky brightness is typically measured in magnitudes per square arcsecond.
The Canon of Lunar Eclipses by Bao-Lin Liu & Fiala (1992) whilst using modern theories does not, for the calculation, retain coefficients less than one arcsecond for the longitude of the Sun and Moon.
Observers in southern Africa will see the pair separated by less than one arcsecond.
parsec A unit of length (about 31 trillion km), the distance at which an object has a parallax angle of one arcsecond.
TheSky 6 allows angular measurements on the screen with an indicated precision of one arcsecond.
4 arcsecond disc requiring a larger telescope (and higher magnification) to resolve.
parsec A unit of length (about 31 trillion kilometres), the distance at which an object has a parallax angle of one arcsecond.
31 arcsecond disk requiring a larger telescope (and higher magnification) to resolve.
7 arcsecond disk appeared reasonably large and bright--very reminiscent of a distant Mars.
The detection threshold of the PS1 system drops off at higher vm with higher rates of transit, shown in the dashed, dotted, and solid lines, and is measured in arcseconds per second (as/s).