About: http://webisa.webdatacommons.org/454763175

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Fischer and her team know this, because they have been tracking the point spread function (PSF) of the pupil, which indicates what a point of light, such as a star, looks like after it gets spread out by an instrument???s optics.
http://www.w3.org/ns/prov#wasQuotedFrom	planetary.org