This is a two-panel mosaic of nebulas and clusters in southern Gemini and northern Orion. The Messier 35 star cluster is at top accompanied by the smaller cluster NGC 2158. At left near the orange star Eta Geminorum is the crescent-shaped Jellyfish Nebula, IC 443, a supernova remnant. The fainter, diffuse nebula at far left is IC 444. At bottom and over the border in Orion is the Monkeyhead Nebula, NGC 2174. The little round nebula above NGC 2174 is Sharpless 2-247. This is a mosaic of two segments for the northern and southern halves of the scene, with each half being a stack of 6 x 8-minute exposures at ISO 800 with no filter, plus a stack layered in of 6 x 8-minute exposures at ISO 3200 with an Optolong L-Enhance filter to bring out the faint red nebulosity. So this is a stack and blend of a total of 24 exposures. Alll were with the Canon EOS Ra camera on the SharpStar HNT150 Hyperbolic Newtonian astrograph at f/2.8.
M36 and M38 clusters with IC405, IC 410, and IC417 nebulas. Williams Optics FLT110 f/6.5 apo refractor and 1h15m exposure on Ektachrome E200 slide film with Pentax 6x7 camera. Taken from home October 2003. Simulates field of view of large binoculars.
IC 443, a supernova remnant in Gemini (aka the Jellyfish Nebula) and associated nebulosity such as IC 444 and LDN 1565, plus the Messier open cluster M35 at right, with its companion cluster NGC 2158 below it. This is a stack of 12 images, with the TMB 92mm and Borg 0.85x flattener for f/4.7, and filter modified Canon 6D at ISO 800. 8 shots were 6 minutes and 4 shots were 8 minutes.
