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.
The Jellyfish Nebula, IC 443, at left near the star Eta Geminorum at left. IC 443 is a supernova remnant. At upper ight is the bright open star cluster Messier 35. The smaller and fainter star cluster below M35 is NGC 2158. M35 is 2500 light years away but NGC 2158 is 16,500 light years away. This is a stack of 10 x 6-minute exposures with the 92mm TMB apo refractor at f4/4 with the Borg 0.85x field flattener/reducer and the filter modified Canon 5D MkII at ISO 800. Taken from New Mexico.
