I'd like to know how to set up a secondary moon for a very much Earth-like planet that I could use for religious and time measurement purposes in a novel but that would not change general situation on the planet.
So the moon would need to be visible with naked eye, but too small/too far to significantly impact tides, night time light conditions etc.
What size it could have (maximum), how far and how long orbital period it should have?
How big, comparable to current Earth Moon, would it appear on the sky? And how would it affect various astronomical events? For example: How often "small" moon would disappear behind the big? Would the solar ellipse of the small moon be noticeable?