M31 in BLUE

October 29, 2021 - Reading time: ~1 minute

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.