About: http://webisa.webdatacommons.org/191126729

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	Alt Az choices will likely get you more rigidity, and thereby lack of focus wiggles, for the money, so consider that route if budget and weight are a concern.
http://www.w3.org/ns/prov#wasQuotedFrom	cloudynights.com