Adding a link and reference back to your old star is an excellent idea @tony_b and if I may, I suggest you also do the reverse. That is, place a link forward from your old to your new star. You can see that I have done it here. The point is you don’t know where a user is going to land first and remember, these posts end up on the wide web and where an interested viewer doing a search could end up at either end of your star chain!