The small emission nebula NGC 1491 in Perseus, with the large bright star cluster NGC 1528 at left. The field has other faint nebulosity throughout. This is a stack of 5 x 12 minute exposures with the TMB 92mm apo refractor and Borg 0.85x flattener/reducer for f/4.8 and filter-modified Canon 5D MkII at ISO 800. Taken from home Oct 9/10, 2013.
The open clusters NGC 1528 (top and prominent) and NGC 1528 (lower left and sparse) in Perseus, along with dim and sparse NGC 1513 at lower right. The small HII region NGC 1491 is at upper right near the frame edge. All are in Perseus. This is a stack of 4 x 6 minute exposures with the Canon 6D at ISO 800 and through the TMB 92mm refractor at f/4.5 on the AZ-EQ5 mount for testing. Shot Nov 4, 2015 from home on a cool crisp night with lots of airglow and an odd aurora to the south. Slight frost was forming on the lens at the end, adding some star glows. Star spikes added with Astronomy Tools Actions.
NGC 2169 cluster in Orion (X-Y cluster) with 5-inch f/6 apo refractor. Stack of two 6-minute exposures with crescent Moon up, at ISO400 and 0° C temperature. With Canon 20Da camera. Slight trailing.
