Waid Observatory


NGC 2438 in M46

NGC 2438 in M46 1

Discovered by William Herschel in 1786.

Planetary nebula NGC 2438 appears superimposed over the open star cluster M46, although it is certainly not a member of the cluster, but a foreground object.  NGC 2438 is one of the discoveries of William Herschel, who cataloged it as H IV.39.

In my image the faint central star can be seen close to a background star, which is probably a member of M46, as are many of the other stars in the image.  The central star is of magnitude 17.5.


Copyright Donald P. Waid