Messier 46, Messier 47, NGC 2423, NGC 2438, Minkowski 1-18
In addition to the open clusters Messier 46 [ left center ], Messier 47 [ right center ] and NGC 2433 [ just above Messier 47 ], this image also captured two planetary nebula - NGC 2438 and Minkowski 1-18
NGC 2438 is seen in the wide field view above as the blue dot superimposed on the Messier 46 cluster and is shown in more detail in the images below. Minkowski 1-18 is seen as the faint red tinged dot in the images below.
January 25, 2012
90 minute exposure - one-half hour for each of the red, green and blue filters.
Shelter Valley, San Diego County, California
Optics - Takahashi Epsilon 160 f/3.3 astrograph
Mount - Astro-Physics AP 1200 GTO
Camera - SBIG STL-11000M