This image was shut with 2 telescopes:
The wide field image was shut with 16″ Dream scope F3.75 from Tivoli farm in Namibia for 40 min (LRGB 10 min each…)
The shells toook another 12 hrs of Hydrogen Alpha to be visible.
In addition the shells were enhanced further in Ha with a 12″ F7.5 LX200 from Israel.
Total imaging time 13 HRS with the 16″ Dream scope.
And 10 Hrs with the 12″ scope
Grand total of 23 HRS.
Imaged May-December 2015
NGC 2438 is a planetary nebula about 3,000 light years away in the constellation Puppis.
It was discovered by William Herschel on March 19, 1786.
The planetary nebula NGC 2438 appears to lie within the cluster M46, but it is most likely unrelated since it does not share the cluster’s radial velocity.
Long exposures have shown that this planetary nebula has an extended halo.(WIKI)
In this image there are 2 rings visible!