Preliminary analysis of the Stardust imagery suggests that Annefrank may be a contact binary , although other possible explanations exist for its observed shape .
From the photographs , the albedo of Annefrank was computed to be between 0.18 and 0.24 .
Preliminary analysis of the Stardust imagery suggests that Annefrank may be a contact binary , although other possible explanations exist for Annefrank 's observed shape .
From the photographs , the albedo of Annefrank was computed to be between 0.18 and 0.24 .