▁T ables , ▁compiled ▁with ▁the ▁assistance ▁of ▁Christian ▁Ol uf sen , ▁appeared ▁in ▁ 1 8 5 4 . ▁Hans en ▁gave ▁in ▁ 1 8 5 4 ▁the ▁first ▁int imation ▁that ▁the ▁accepted ▁distance ▁of ▁the ▁sun ▁was ▁too ▁great ▁by ▁some ▁millions ▁of ▁miles ▁( Month . ▁Notices ▁Roy . ▁A str . ▁Soc . ▁x v . ▁ 9 ), ▁the ▁error ▁of ▁J . F . ▁En cke ' s ▁result ▁having ▁been ▁rendered ▁evident ▁through ▁his ▁investigation ▁of ▁a ▁lun ar ▁inequality . ▁In ▁ 1 8 6 5 , ▁he ▁was ▁elected ▁a ▁foreign ▁member ▁of ▁the ▁Royal ▁Swedish ▁Academy ▁of ▁Sciences . ▁ ▁He ▁died ▁on ▁ 2 8 ▁March ▁ 1 8 7 4 , ▁at ▁the ▁new ▁observ atory ▁in ▁the ▁town ▁of ▁Goth a , ▁ere cted ▁under ▁his ▁care ▁in ▁ 1 8 5 7 . ▁ ▁Minor ▁planet ▁ 4 7 7 5 ▁Hans en ▁is ▁named ▁after ▁him . ▁ ▁See ▁also ▁▁ ▁Hans en ' s ▁problem ▁ ▁References ▁ ▁Further ▁reading ▁ ▁V iert el j ah rs schrift ▁astr . ▁Gesellschaft , ▁x . ▁ 1 3 3 ; ▁ ▁Month . ▁Notices ▁Roy . ▁A str . ▁Society , ▁x xx v . ▁ 1 6 8 ; ▁ ▁Pro c . ▁Roy . ▁Society , ▁xx v . ▁p .   V .; ▁ ▁R ▁Wolf , ▁Geschichte ▁der ▁Astronom ie , ▁p .   5 2 6 ; ▁ ▁W och