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NGC 3521 "The Bubble Galaxy"

NGC3521_03262019_HaRGB_180s_.png ThumbnailsThumbnailsThumbnailsThumbnails

Acquisition start time 02:37-(UT)

Skywatcher Quattro 12" F4 OTA
Losmandy Gemini 2 Titan GEM, PHD2 Guiding
RGB Filters: 16 sub-frames Each @ 180 Seconds Ea.
Ha 7nm Filter 10 subframes @ 360 Seconds Ea.