Taken over a couple nights SH2 157 Lobster Claw Nebula. First go with my new Ha-Oiii / Sii-Oiii 6nm filters. SH2-157, also known as the Lobster Claw Nebula, is an emission nebula located about 11,000 light-years away in the constellation of Cassiopeia. RVO 80ED RVO 50mm Guide Scope ZWO ASI 220mm mini Skywatcher EQM-35 pro ZWO ASI 183mc pro. ZWO EAF ZWO ASIAIR plus ZWO IR Cut Filter Astrophotography