北斗七星 Nacpan beach, El Nido 裁

24mm, F2.8, ISO 3200, 30sec, single shot PENTAX K-1 ii, DFA 24-70 內建天體追蹤模式 With astrotracer M51A漩渦星系Messier 51 (The Whirlpool Galaxy) M101風車星系Messier 101 (Pinwheel Galaxy)