▁for ▁Por vo o , ▁Finn ish ▁city ▁and ▁municipality ▁located ▁on ▁the ▁southern ▁coast ▁of ▁Finland , ▁and ▁east ▁of ▁the ▁capital ▁Hels ink i . ▁ ▁Por vo o ▁is ▁one ▁of ▁the ▁six ▁medieval ▁towns ▁in ▁Finland , ▁and ▁is ▁its ▁second ▁oldest ▁city ▁after ▁Tur ku , ▁location ▁of ▁the ▁discover ing ▁observ atory . ▁In ▁ 1 8 0 9 , ▁at ▁the ▁Diet ▁of ▁Por vo o , ▁the ▁Russian ▁cz ar ▁confirmed ▁that ▁Finland ▁was ▁an nex ed ▁to ▁the ▁Russian ▁emp ire ▁as ▁an ▁autonom ous ▁nation . ▁The ▁official ▁naming ▁c itation ▁was ▁published ▁by ▁the ▁Minor ▁Planet ▁Center ▁on ▁ 1 ▁August ▁ 1 9 8 0 ▁( ). ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Ast ero id ▁Light cur ve ▁Database ▁( LC DB ), ▁query ▁form ▁( info ) ▁ ▁Dictionary ▁of ▁Minor ▁Planet ▁Names , ▁Google ▁books ▁ ▁Ast ero ids ▁and ▁com ets ▁rotation ▁curves , ▁C d R ▁– ▁Observ atoire ▁de ▁Gen ève , ▁Ra oul ▁Be hr end ▁ ▁Disc overy ▁Circ um st ances : ▁Number ed ▁Minor ▁Plan ets ▁( 1 )- ( 5 0 0 0 ) ▁– ▁Minor ▁Planet ▁Center ▁▁▁▁▁▁▁▁▁ 0 0 1 7 5 7 ▁Category : Dis cover ies ▁by ▁Y r jö ▁V ä is äl ä ▁Category : Min or ▁plan ets ▁named ▁for ▁places ▁Category : Named ▁minor ▁plan ets ▁ 1 9 3 9 0 3 1 7 <0x0A> </s> ▁Fred ▁H aines ▁( F