About: http://webisa.webdatacommons.org/36751859

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	His animation shows not only how the Moon appears larger or smaller, depending on whether it is closer to or farther from Earth than average; it also captures the rolling and nodding of the disk due to libration.
http://www.w3.org/ns/prov#wasQuotedFrom	skyandtelescope.com