The Heart Nebula, IC 8105, in Cassiopeia, with nebula NGC 896 at upper right and star cluster NGC 1027 at left of centre. This is a stack of 15 x 5-minute exposures with the Nikon D810a as part of testing, at ISO 1600, and with the TMB 92mm apo refractor at f/4.4 with the Borg 0.85x field flattener with the extra spacer ring. However, edges are still soft. Taken from home Nov 29, 2015.
The large emission nebula IC 1805 in Cassiopeia, aka the Heart Nebula. The round nebula at top right is NGC 896. The large loose star cluster at centre is Mel 15; the star cluster at left is NGC 1027. The small cluster below NGC 896 is Tombaugh 4. This is a stack of 8 x 6-minute exposures with the Canon EOS Ra mirrorless camera at ISO 1600 through the Astro-Physics Traveler apo refractor at f/6 with the Hotech field flattener. Stacked, aligned and processed in Photoshop.
IC 1805, the Heart Nebula, in Cassiopeia, with NGC 896 nebula at top right, and NGC 1027 star cluster at left. The star cluster at centre is also IC 1805. This is a stack of 10 x 8 minute exposures at f/4 with the Sky-Watcher 20cm Quattro astrographic Newtonian telescope with its coma corrector/flattener, using the fileer-modified Canon 5D MkII at ISO 800. Shot from home Oct 11, 2015, with the Quattro on the Mach 1 mount.
