About: http://webisa.webdatacommons.org/283187461

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	This image is a composite of three 4-minute exposures with an SBIG ST-7 CCD camera and a Meade 16-inch LX200 with an Optec MAXfield focal reducer, yielding an effective focal ratio of f/3.3.
http://www.w3.org/ns/prov#wasQuotedFrom	skyandtelescope.com