NGC 1499, the California Nebula, in Perseus. This visually faint emission nebula (but easy to capture with a camera) shines above the hot blue star Zeta Persei, aka Menkib, and is surrounded by other faint threshold nebulosity. 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 lens nicely kept off the frost.
The California Nebula in Perseus, aka NGC 1499, in a set of guided exposures taken January 5, 2018 from home. This is a stack of 12 x 6-minute exposures, median combined to eliminate a satellite trail, and taken with the filter-modified Canon 5D MkII camera at ISO 800, and TMB 92mm apo refractor with the Borg 0.85x flattener/reducer for f/4.5. Guided with PHD2 with the Starshoot autoguider on the EQ6-R mount.
