The galaxy M91 in Coma Berenices.
This image is a stack of 57 thirty second exposures using a Vixen R200SS 8" f/4
Newtonian with a Paracorr and an IR-blocking filter.
The image was calibrated, defect corrected, stacked and gradient corrected,
then a simple linear stretch was performed, all using AIP4WIN.
This image has been resampled down from its original size of 1280x1000.