I had a wonderful observing night yesterday, at my dark site (I begin to find darkness addictive). I started with M35 and proceeded along the Miky Way (that was clearly visible albeit not down to the horizon) looking for open clusters - while they were placed favourably at our latitude. There are at least a dozen bright open clusters for a small telescope between M35 and M46, all very different from each other! Along the way I came over NGC2175 which is shown as an open cluster in Karkoschka but involves a large featureless diffuse neubla as well. I missed to look for the Cone Nebula in the Christmas Tree cluster. In the end was M46 with its huge amount of stars of even brightness, where I for the first time saw the planetary nebula NGC2438. It was not visible without filter, but with UHC it reminded M57 with much lower contrast. I checked the size later - and indeed, 2438 is 1'.1 and M57 1'.5 in diameter. I had a feeling that there is a huge wealth of interesting objects further down - but bumped into the horizon... Canis Major hardly ever shows its complete self here.
Before I went home I took a quick look at the Leo triplet - a foretaste of spring galaxies to come.
Dmitri
Before I went home I took a quick look at the Leo triplet - a foretaste of spring galaxies to come.
Dmitri