M46 Open Cluster with
NGC 2438 Planetary Nebula


(click on the image for a larger version)
  The open cluster Messier 46 has a planetary nebula that appears in the foreground.  Current estimates are that the distance to the cluster is 5,400 light years and the nebula lies 2,900 light years away (making the nebula a foreground object).

-  ISO 1600
-  F3.8
-  4 minute exposures (x 4); 16 minutes total
-  Piggyback on the 5" Wright Newtonian Astrograph
-  Manually guided
-  Location: TDS

02.28.2009