CRL2688（Egg nebula, PK 80-6.1）  12mag  24"×6"

2024.Jul.27. etc.  C14 35cmF11  ZWO ASI294MM, L: 5sec*276+2sec*841 + gray-scaled color image, R: R60 filter 2sec*1287, GB: Baader G,B filter 3sec*419+2sec*851, 3sec*420+2sec*1280  total 206.9min