This phenomenon was repeated a dozen times or more, the flame assuming various twisting shapes at random and then returning to normal. Meanwhile the body of the moon which was below writhed, as it were, in anxiety, and, to put it in the words of those who reported it to me and saw it with their own eyes, the moon throbbed like a wounded snake. From the midpoint of this division a flaming torch sprang up, spewing out, over a considerable distance, fire, hot coals, and sparks. There was a bright new moon, and as usual in that phase its horns were tilted toward the east and suddenly the upper horn split in two. On June 18, 1178, five or more monks from Canterbury reported an upheaval on the Moon shortly after sunset:.Of the most reliable of these events, at least one-third come from the vicinity of the Aristarchus plateau.Īn overview of the more famous historical accounts of transient phenomena include the following: Two extensive catalogs of transient lunar phenomena exist, with the most recent tallying 2,254 events going back to the 6th century. Cameron classifies these as (1) gaseous, involving mists and other forms of obscuration, (2) reddish colorations, (3) green, blue or violet colorations, (4) brightenings, and (5) darkening. Reports of transient lunar phenomena range from foggy patches to permanent changes of the lunar landscape. The controversy lies in the frequency of such events. Most lunar scientists will acknowledge transient events such as outgassing and impact cratering do occur over geologic time. Nevertheless, the majority of transient lunar phenomenon reports are irreproducible and do not possess adequate control experiments that could be used to distinguish among alternative hypotheses to explain their origins. ![]() Ĭlaims of short-lived lunar phenomena go back at least 1,000 years, with some having been observed independently by multiple witnesses or reputable scientists. The term was created by Patrick Moore in his co-authorship of NASA Technical Report R-277 Chronological Catalog of Reported Lunar Events, published in 1968. Red-hued events are in red the remainder are in yellow.Ī transient lunar phenomenon ( TLP) or lunar transient phenomenon ( LTP) is a short-lived light, color or change in appearance on the surface of the Moon. Middlehurst and Patrick Moore, shows the approximate distribution of observed events. This map, based on a survey of 300 TLPs by Barbara M.
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