High Resolution Astrophotography NGC 40 - Bow-Tie Nebula | Planetary Nebula in the constellation Cepheus   Parameters -   Detector -   Filters -   Optics -   Mount -  350x7,1s  ASI 120MM mod  Baader UHC-S  Homemade Newton 305/1500 Telescope  Homemade English Yoke Mount