title: Moon Illusion: An Event in Imaginary Space.
abstract: The illusion was obtained with artificial moons viewed against a luminous ceiling, and also with an imaginary ceiling induced by first showing a luminous ceiling and then removing it before the moons were introduced.
authors.forename: H E
authors.initials: HE
authors.lastname: Gruber
authors.forename: W L
authors.initials: WL
authors.lastname: King
authors.forename: S
authors.initials: S
authors.lastname: Link