Table Descriptions
DR4 Help
 Archive Intro
 Table Descriptions
 Schema Browser
 Introduction to SQL
 Sample SQL Queries
 Query Limits
 How To
 SkyServer Sites
 SkyServer Traffic Page
 Web Browsers
 Site News
 Contact Help Desk

PhotoFamilyPhotoThis view contains objects which are in PhotoObjAll, but neither PhotoPrimary nor PhotoSecondary. These objects are generated if they are neither primary nor secondary survey objects but a composite object that has been deblended or the part of an object that has been deblended wrongfully (like the spiral arms of a galaxy). These objects are kept to track how the deblender is working.