This article is about the apparent variation in the moon's size. For the discrepancy between the sun's position and the lunar terminator, see Lunar terminator.
A harvest moon
The Moon illusion is an optical illusion which causes the Moon to appear larger near the horizon than it does higher up in the sky. It has been known since ancient times and recorded by various cultures.[1][2] The explanation of this illusion is still debated.[2][3][4]
^Wade, Nicholas J (1998). A natural history of vision. A Bradford Book. Cambridge MA, London, UK: The MIT Press. p. 377 ff. ISBN 978-0-262-23194-7.
^ ab
Ross, Helen E.; Plug, Cornelis (2002). The mystery of the moon illusion. Oxford, New York: Oxford University Press. ISBN 019-850862-X.
^Hershenson, Maurice (2013). The Moon illusion. ISBN 978-0203771303.
^McCready, Don (10 November 2004). "Finally! Why the Moon Looks Big at the Horizon and Smaller When Higher Up" (PDF). Psychology Department, University of Wisconsin-Whitewater. Retrieved 2 December 2015.
The Moonillusion is an optical illusion which causes the Moon to appear larger near the horizon than it does higher up in the sky. It has been known since...
generally shared by most people. Illusions may occur with any of the human senses, but visual illusions (optical illusions) are the best-known and understood...
the visual angle. The SDIH does not explain some illusions, such as the Moonillusion, in which the Moon appears larger when it is near the horizon. It...
to the magnitude of the distortion. The Ponzo illusion is one possible explanation of the Moonillusion, with objects appearing "far away" (because they...
and List of 21st-century lunar eclipses Lunar occultation Moonillusion Orbit of the Moon Solar eclipse Eclipses in history and culture McClure, Bruce...
Purkinje effect. The blue or silver appearance of the light is an illusion. The Moon's bond albedo averages 0.136, meaning only 13.6% of incident sunlight...
shortly after sunset when the Moon appears near the horizon and the Moonillusion is at its most apparent. While the Moon's surface luminance remains the...
This is a list of visual illusions. Adaptation (eye) Alice in Wonderland syndrome Auditory illusion Camouflage Contingent perceptual aftereffect Contour...
psychological effect, known as the Moonillusion, makes the Moon appear larger when close to the horizon. Despite the Moon's tidal locking, the effect of libration...
an illusion. This illusion, known as the Moonillusion, is caused by an effect of the brain. There is no definitive explanation for the Moonillusion. However...
sunrise than it does while higher in the sky, in a manner similar to the Moonillusion. The Sun appears to rise above the horizon and circle the Earth, but...
Man in the Moon lore Moon Illusions The Man in the Moon and other weird things The Man in the Moon Look up man in the moon in Wiktionary, the free dictionary...
Moon rock or lunar rock is rock originating from Earth's Moon. This includes lunar material collected during the course of human exploration of the Moon...
effect Man in the Moon Memorials on the Moon Month Lunar month Moonillusion Harvest moon Hunter's moonMoon in art and literature Moon in mythology Hjúki...
The Sun also appears larger on the horizon, an optical illusion, similar to the moonillusion.[citation needed] Locations north of the Arctic Circle and...
judgmental factors. He offered an obscure explanation of the Sun or Moonillusion (the enlarged apparent size on the horizon) based on the difficulty...
so the Moon appears far and large. Through works by Roger Bacon, John Pecham, and Witelo based on Ibn al-Haytham's explanation, the Moonillusion gradually...
representation of perceived angular size in human primary visual cortex."". The MoonIllusion Explained. Archived from the original on 7 December 2011. Retrieved...
Cyanometer Archaeoastronomy Baird, J. C.; Wagner, M. (1982). "The moonillusion: I. How high is the sky?". Journal of Experimental Psychology: General...
projects is his 1940 study of the Moonillusion. Boring and fellow researcher A. H. Holway hypothesized that the Moon appears larger on the horizon because...
system Purkinje images. The unusually large size of the Moon as it rises and sets, the Moonillusion The shape of the sky, the sky bowl Some phenomena are...
it appears that the Moon is biggest when it is near the horizon, the opposite is true. This phenomenon is known as the Moonillusion. The reason for the...
Moonillusion which makes it appear larger. The Sun's light reflected from the Moon traveling through the atmosphere also appears to color the Moon orange...
In visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual percept...
perspective. This suggestion is also responsible for the famous moonillusion where the moon, despite having essentially the same angular size, appears much...
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