EFFECT OF LUMINANCE ON THE MOON ILLUSION,

Abstract

An investigation was made to determine if the moon illusion was caused by a change in luminance or by a change in contrast with the sky background. Two moons, apparently equal in size, were projected to two different levels and at the same level in the sky. The horizon moon appeared to be larger, regardless of its luminance, when compared to an upper moon. Nearness of moon to the terrain appears to affect the apparent size of the moon more than the luminance of the moon or its contrast with the sky background. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1965
Accession Number
AD0474456

Entities

People

  • James E. Hamilton

Organizations

  • United States Air Force School of Aerospace Medicine

Tags

DTIC Thesaurus Topics

  • Behavior And Behavior Mechanisms
  • Contrast
  • Diseases And Disorders
  • Luminance
  • Memory Devices
  • Mental Processes
  • Nervous System Diseases
  • Neurobehavioral Manifestations
  • Neurologic Manifestations
  • Optical Properties
  • Perception
  • Physical Properties

Fields of Study

  • Physics

Readers

  • Vision Science/Vision Psychology/Cognitive Neuroscience.