Clusters and nebulosity at the feet of Gemini the twins, on the border of Orion. M35 star cluster is at top, and supernova remnant IC 443 is below. Brightest nebula in NGC 2174 in Orion, while small nebula below it is IC 2162. Large faint nebula at bottom right is Lower's Nebula, aka Sharpless 2-261. This is a stack of 5 x 8 minute exposures at f/2.8 and ISO 800 with the Canon 5D MkII and Canon L-series 135mm lens.
M35 in Gemini, with nearby nebulosity, IC 443, the Jellyfish Nebula, below, and NGC 2174 (at right) Taken from New Mexico, with 135mm telephoto at f/2.8 and stack of 4 x 6 minute exposures with Canon 5D MkII at ISO 1250, on iOptron SkyTracker.
This is the rich region of clusters and nebulosity in the constellation of Gemini, with the Jellyfish Nebula, IC 443 at bottom near the orange star eta Geminorum. IC 443 is a supernova remnant. The larger region of fainter, diffuse nebulosity at left is IC 444. The loose star cluster embedded in it, with the blue star 12 Gem, is Collinder 89. At top right is the bright showpiece open star cluster Messier 35 with its smaller, more distant companion cluster NGC 2158 at lower right from M35. This is a blend of 8 x 5-minute exposures at ISO 800 unfiltered with 6 x 10-minute exposures at ISO 1600 shot through an Optolong L-Enhance dual-band nebula enhancement filter (it lets through only Oxygen III blue-green and Hydrogen-alpha red to really enhance the nebulosity). All exposures with the Canon EOS Ra mirrorless camera through the SharpStar HNT150 Hyperbolic Newtonian Astrograph at f/2.8, from home on a very clear moonless night January 27, 2020. All stacked, aligned and blended in Photoshop 2020.
