▁trem end ous ▁jet ▁being ▁em an ating ▁from ▁galax y ' s ▁central ▁black ▁hole . ▁ ▁NGC ▁ 6 6 0 ▁is ▁a ▁member ▁of ▁the ▁M 7 4 ▁Group . ▁ ▁See ▁also ▁ ▁List ▁of ▁polar - ring ▁galaxies ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : M 7 4 ▁Group ▁Category : P is ces ▁( const ell ation ) ▁ ▁Category : Pol ar - ring ▁galaxies ▁Category : L entic ular ▁galaxies ▁▁ 0 6 6 0 ▁ 6 3 1 8 <0x0A> </s> ▁Y ong long sha , ▁sometimes ▁translated ▁as ▁the ▁Y ong long ▁Sho al ▁or ▁Y ong long ▁S ands , ▁was ▁a ▁former ▁island ▁in ▁the ▁north ▁channel ▁of ▁the ▁Yang t ze ▁River ▁above ▁Ch ong ming ▁in ▁eastern ▁China . ▁It ▁was ▁also ▁known ▁as ▁Y ong f eng sha ▁and ▁He f eng sha . ▁Prior ▁to ▁its ▁absor ption ▁by ▁Ch ong ming , ▁it ▁measured ▁about ▁ ▁east ▁to ▁west ▁but ▁was ▁very ▁narrow , ▁with ▁an ▁area ▁of ▁about ▁. ▁__ NOT OC __ ▁ ▁History ▁Y ong long sha ▁first ▁appeared ▁in ▁the ▁ 4 2 nd ▁year ▁of ▁K ang xi ▁( 1 7 0 3 ) ▁but ▁was ▁imper man ent . ▁It ▁emer ged ▁most ▁recently ▁in ▁ 1 9 3 7 . ▁E rod ing ▁on ▁the ▁south ▁and ▁east ▁while ▁growing ▁to ▁the ▁north ▁and ▁west , ▁it ▁migr ated ▁from ▁the ▁center ▁of ▁the ▁Yang t ze '