▁ 1 9 6 6 , ▁more ▁than ▁ 1 5 ▁years ▁prior ▁to ▁its ▁official ▁discovery ▁observation . ▁ ▁Phys ical ▁characteristics ▁▁ ▁Non na ▁has ▁been ▁character ized ▁as ▁a ▁Q - ▁and ▁V - type ▁astero id ▁by ▁Pan - ST AR RS ▁phot ometric ▁survey , ▁while ▁the ▁Coll abor ative ▁Ast ero id ▁Light cur ve ▁Link ▁( C ALL ) ▁assumes ▁it ▁to ▁be ▁a ▁common ▁S - type ▁astero id . ▁The ▁overall ▁spectral ▁type ▁of ▁V est ian ▁astero ids ▁is ▁typically ▁that ▁of ▁a ▁V - type . ▁ ▁Rot ation ▁period ▁▁ ▁Since ▁ 2 0 0 6 , ▁several ▁rot ational ▁light cur ves ▁of ▁Non na ▁have ▁been ▁obtained ▁from ▁phot ometric ▁observations ▁at ▁Mod ra ▁Observ atory ▁by ▁astronom ers ▁Adri án ▁Gal ád ▁and ▁Pet r ▁Pra vec . ▁Analysis ▁of ▁the ▁best - r ated ▁light cur ve ▁from ▁September ▁ 2 0 0 6 ▁gave ▁a ▁rotation ▁period ▁of ▁ 2 . 5 8 7 7 ▁hours ▁with ▁a ▁bright ness ▁variation ▁of ▁ 0 . 0 7 7 ▁magnitude ▁( ). ▁A ▁measurement ▁by ▁French ▁amateur ▁astronom er ▁René ▁Roy ▁gave ▁a ▁similar ▁result ▁of ▁ 2 . 6 2 ▁hours , ▁after ▁using ▁an ▁alternative ▁period ▁solution . ▁All ▁light cur ves ▁showed ▁an ▁unus ually ▁low ▁amplitude ▁which ▁is ▁indic ative ▁for ▁a ▁s ph ero idal ▁shape . ▁The ▁astero id ' s ▁short ▁period ▁is ▁close ▁to ▁that ▁of ▁a ▁fast ▁rot