binocular distance focus girl instrument lens looking magnifying observe optical panorama panoramic people person sightseeing spyglass telescope tourism view watch woman attendance attendees audience communication information listeners listening marquee meeting observing participants readiness ready seated seating sharing shelter tent visitors waiting cloud clouds forest forests green hill hills horizon leaves mountain mountains nature observation path skies sky tree trees wood woods architecture astronomy complex dome elements England english eyepiece Great Britain Herstmonceaux objective observatory reflecting research science scientific stars study Sussex act acting adults children clown clowning clowns costume costumes culture emotion entertaining entertainment fun happy joy observers preparation preparing presentation shopping-mall