[casstony]

I may have a couple of clear nights on the way, but they'll be warm so I thought I might try imaging bright planetaries with the Skywatcher 150ED and Nikon d5600.

To save some experimenting can anyone recommend exposure times for ngc 3918 (blue planetary) and ngc 3242 (ghost of Jupiter).

I might also try ngc 3132 (Southern Ring) and M1.