M31 in BLUE

October 29, 2021

This is the blue bandpass of the Andromeda Galaxy (M31), revealing dense spirals of dust that wind through starfields and curl around the galactic core. I have labeled NGC 206, one of the brightest of the star clouds inside Andromeda, along with a couple of M31's captive galaxies (M32 and M101). Imaging Notes: 51 x 120-second stacked subs from my WilliamOptics SpaceCat51 (250mm FL) and ZWO ASi1600MM-Pro mono camera.