Sentences with phrase «arcsecond across»

Those atoms then fluoresce at the same wavelength to create five artificial stars, each about 1 arcsecond across, at the corners and center of a 1 - arcminute square.

«We, for the first time, can make deep images that resolve objects just 0.02 arcseconds across — this is a very small angle — it is like resolving the width of a dime seen from 100 miles away, or like resolving a convoy of three school busses driving together on the surface of the Moon.»

Not exact matches

Fomalhaut moves across the sky at 0.425 arcseconds per year, which is the apparent width of a penny seen from five miles away.