▁of ▁computers ▁in ▁astronom y ▁in ▁Norway . ▁He ▁also ▁published ▁popular ▁science ▁books ▁and ▁articles , ▁he ▁was ▁a ▁common ▁guest ▁in ▁radio ▁and ▁television ▁program mes ▁and ▁provided ▁comment ary ▁for ▁the ▁Norwegian ▁Broadcast ing ▁Corporation ▁during ▁the ▁television ▁coverage ▁of ▁the ▁Apol lo ▁ 1 1 ▁moon ▁landing . ▁He ▁was ▁promoted ▁to ▁professor ▁in ▁ 1 9 8 7 , ▁but ▁retired ▁when ▁reaching ▁the ▁age ▁limit ▁of ▁ 7 0 ▁in ▁ 1 9 8 8 . ▁He ▁was ▁a ▁professor ▁emer it us ▁for ▁the ▁rest ▁of ▁his ▁life . ▁He ▁continued ▁doing ▁the ▁calculations ▁for ▁the ▁official ▁Norwegian ▁al man ac ▁until ▁ 1 9 9 1 , ▁having ▁started ▁in ▁ 1 9 6 7 . ▁During ▁this ▁entire ▁period ▁the ▁al man ac ▁was ▁edited ▁by ▁E ber hart ▁J ensen . ▁ ▁Bra h de ▁lived ▁at ▁Has l um . ▁He ▁died ▁in ▁May ▁ 2 0 0 9 . ▁ ▁References ▁ ▁Category : 1 9 1 8 ▁birth s ▁Category : 2 0 0 9 ▁death s ▁Category : N or weg ian ▁astronom ers ▁Category : Univers ity ▁of ▁Os lo ▁al umn i ▁Category : Univers ity ▁of ▁Os lo ▁fac ulty ▁Category : N or weg ian ▁resistance ▁members ▁Category : X U ▁Category : N or weg ian ▁exp atri ates ▁in ▁Sweden ▁Category : Pe ople ▁from ▁T ved est rand <0x0A> </s> ▁" O ▁Spirit ual ▁Pil gr im " ▁is ▁a ▁part ▁song