NGC 2359 “Casque de Thor” NGC 1499 “California” NGC 6946 M57 NGC 3628 JONES-Emberson 1 Cheshire cat LDN 1251 SH2-188 NGC 6826 SH2-174 NGC 6888 WR 134 SH2-29 SH2-86 NGC 6866 SH2-106 NGC 1579 M81 & M82 ARP 188