M44 the Beehive or Praesepe star cluster in Cancer. This is a stack of 4 x 4 minute exposures at ISO 800 with the Canon 7D on the TMB 92mm apo refractor with Borg 0.85x reducer/flattener for f/4.5. Taken on a slightly hazy night, April 22, 2011 using AP 600E mount and SG4 autoguider.
Messier 44, the Beehive or Praesepe star cluster in Cancer, through the 105mm Astro-Physics Traveler apo refractor with the Hotech field flattener for f/5.8 and in a stack of 11 x 4-minute exposures at ISO 800 with the Canon 6D MkII camera. Taken on a slightly hazy night on March 25, 2019, thus the natural star glows – the cluster is not surrounded by nebulosity! However, the sky is clear enough that some of the very faint IC, UGC, and PGC galaxies in the field show up. Most are 15th to 17th magnitude. I’ve punched up the star colours with a star mask. Stars tightened with StarShrink filter. Diffraction spikes added in post with Astronomy Tools actions.
Open cluster M44, the Beehive or Prasepe, in Cancer. Red star at lower left i carbon star X Cancri. This is a stack of 3 x 3 minute exposures in hazy skies with Canon 5D MkII at ISO 800 and Canon 135mm lens at f/2.8. Taken January 6, 2011. Field of view simulates binocular field.
