M81_AG12_MCU_IDASLPSD3_22dB_14x3min_310123
M81 - a stack of 14 x 3 minute subs taken with a Mallincam Universe OSC CCD camera and IDAS LPS D3 filter through an Orion Optics AG12 astrograph and 0.95x Wynne Corrector. Images stacked and processed in PixInsight.