Hey Bob, I too booked the Explore Scientific event. Just saw that you are going to that same event! My plan is to be there with my sister but we will see how things go, one of my immidiate family is expecting a baby and that might chanage plans but for now, we plan to be there.
Way cool!!! Hope you and your sister can make it, but yes, family does come first. There should be some dark skies for your photo kit the nights before the main event. Even Omega Centauri will be visible.