Anticipating the Eclipse

We've got our glasses. Tomorrow morning there will be an eclipse. At dawn according to one source. And 7:30 AM  according to another. I think 7:30 AM is way after dawn in May.

Little Brother is up at 5:30 to go to school. In some seasons that is before dawn. In some seasons it is after dawn. He doesn't have to be at school until 11:30 so that he can watch the eclipse. I hope he doesn't sleep in!