This is a pair of colourful nebulas in Cassiopeia. The Pacman Nebula, NGC 281, is at bottom near the stars Alpha Cassiopeiae, aka Schedar (or Schedir) at right, and eta Cas, aka Achird (above NGC 281). At top are the largely blue or magenta reflection nebulas IC 59 and IC 63 adjacent to the blue star Gamma Cassiopeiae, aka Navi. The tiny blue dot of the planetary nebula Abell 2 is just right of Achird. North is at top in the porttrait format image. This is a stack of 8 x 8-minute exposures through the Borg 77mm f/4 astrograph and with the Canon EOS Ra red-sensitive mirrorless camera, at ISO 800. Stacked, aligned and processed in Adobe Camera Raw and Photoshop 2020. No nebula or light pollution reduction filter was employed in taking the images. I shot this from home November 25, 2019 on a very fine if frosty autumn night. The Dew Destroyer heater coil from David Lane wrapped around the front objective nicely kept off the frost.
Double Cluster and IC nebulas in Perseus. Includes IC 1805 and IC 1848, NGC 896 nebula; NGC 957 cluster left of Double Cluster. Taken Sept. 14, 2007 for stack of 4 x 4 minute exposures with 135mm L-series lens at f/2.8 and Canon 20Da camera at ISO 800.
NGC 1023, a bright barred spiral galaxy in Perseus at centre, with IC 239, a face-on spiral galaxy at right. This is a stack of 4 x 8-minute exposures with the Quattro 20cm astrographic Newtonian reflector at f/4 with its coma corrector, and Canon 5D MkII at ISO 800.