Sentences with phrase «arcseconds across»
«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.»
https://carnegiescience.edu/
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.
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.