▁spectrum , ▁suggesting ▁that ▁a ▁second ▁planet ▁existed ▁in ▁the ▁system ; ▁however , ▁there ▁remained ▁the ▁possibility ▁that ▁this ▁signal ▁could ▁have ▁some ▁other ▁cause , ▁and ▁that ▁the ▁trans it ▁event ▁was ▁a ▁false ▁positive . ▁Att empt s ▁to ▁measure ▁the ▁radial ▁velocity ▁effects ▁of ▁this ▁object , ▁then ▁named ▁K O I ▁ 0 7 2 . 0 2 , ▁were ▁fruit less ; ▁therefore , ▁to ▁rule ▁out ▁false ▁positive ▁scenarios , ▁the ▁Ke pler ▁team ▁used ▁a ▁technique ▁called ▁B LE ND ER . ▁ ▁The ▁application ▁of ▁B LE ND ER ▁was ▁supp lement ed ▁by ▁use ▁of ▁the ▁IR AC ▁instrument ▁on ▁the ▁Sp itzer ▁Space ▁T eles cope , ▁which ▁was ▁used ▁on ▁August ▁ 3 0 ▁and ▁November ▁ 1 5 , ▁ 2 0 1 0 , ▁to ▁further ▁define ▁Ke pler - 1 0 ' s ▁light ▁curve ▁at ▁the ▁point ▁where ▁K O I ▁ 0 7 2 . 0 2 ▁appeared ▁to ▁trans it ▁it . ▁It ▁was ▁found ▁that ▁the ▁trans iting ▁object ▁did ▁not ▁produce ▁a ▁color , ▁an ▁aspect ▁that ▁is ▁characteristic ▁of ▁stars . ▁This ▁suggested ▁even ▁further ▁that ▁K O I ▁ 0 7 2 . 0 2 ▁was ▁a ▁planet . ▁In ▁addition , ▁the ▁IR AC ▁instrument ▁found ▁no ▁difference ▁in ▁the ▁trans it ▁signal ▁when ▁comparing ▁the ▁star ' s ▁light ▁curve ▁in ▁the ▁inf ra red ▁and ▁in ▁visible ▁light ; ▁stars ▁that ▁are ▁aligned ▁with ▁Ke pler - 1