The Heart Nebula (IC 1805) in Cassiopeia with the star clusters Melotte 15 (at centre) and NGC 1027 (at left), with the nebula NGC 896 at upper right. I shot this October 6, 2016 from home with an Explore Scientific FCD102 apo refractor at f/7. This is a stack of 8 x 4.5-minute exposures at ISO 1600 with the filter-modified Canon 5D MkII. Stellar diffraction spikes added with Astronomy Tools Photoshop actions.
The heroic constellations of Hercules (at top) and Ophiuchus (occupying most of the bottom half of the image) with Serpens to either side of Ophiuchus as a bonus. The Milky Way is at the bottom left corner. Corona Borealis is to the right of the H of Hercules. Arcturus is at upper right at the edge of the frame. The S-O Double Cluster is at far left on the edge of the frame below centre. This is a stack of 12 x 1-minute tracked exposures with the Nikon D750 at ISO 1600 and Sigma 24mm Art lens at f/2.2, median combined to help eliminate the clouds drifting through this night, from home June 2, 2019. A single exposure taken through the Kenko Softon A filter blended in added the star glows to make the constellation patterns and star colours pop out better.
The Horsehead Nebula, B33, below the Belt of Orion and the star Alnitak, along with the bright Flame Nebula, NGC 2024, to the left of Alnitak. Many other bright reflection nebulas populate the field, such as NGC 2023 just left of the Horsehead itself. The quintuple star system Sigma Orionis is right of the Horsehead. The dark Horsehead is set against the bright streak of the emission nebula IC 434. This is a stack of 10 x 4 minute exposures with the Celestron Rowe-Ackerman Schmidt Astrograph, a 620mm focal length f/2.2 astrograph in hand for review, and using the filter-modified Canon 5D MkII at ISO 400. Autoguided on the Mach 1 mount. Taken from New Mexico, Nov 28, 2014.
