Open Star Cluster M46/Planetary Nebula NGC2438 in Puppis-C8/ST237 ccd camera @ f3.75; LRGB image 20:10:10:15 min. exposures; Phoenix, AZ 04/2002 Notes: This rich star cluster contains upwards of 150 bright stars. The 10th magnitude planetary is on one edge of the cluster. It is, however, superimposed on and between Earth and the cluster.