Baily's beads
Baily's beads Bai"ly's beads (Astron.) A row of bright spots observed in connection with total eclipses of the sun. Just before and after a total eclipse, the slender, unobscured crescent of the sun's disk appears momentarily like a row of bright spots resembling a string of beads. The phenomenon (first fully described by Francis Baily, 1774 -- 1844) is thought to be an effect of irradiation, and of inequalities of the moon's edge. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • Baily's beads — [bā′lēz] n. [after F. Baily (1774 1844), Eng astronomer] bright spots visible along the rim of the moon during a total eclipse of the sun, just before or after totality, caused by sunlight passing through the moon s valleys and clefts …   English World dictionary

  • Baily's beads — As the moon grazes by the Sun during a solar eclipse, the rugged lunar topography allows beads of sunlight to shine through in some places, and not in others. This effect is called Baily s beads , in honour of Francis Baily, who first provided an …   Wikipedia

  • baily's beads — ˈbālēz , liz noun plural Usage: usually capitalized 1st B Etymology: after Francis Baily died 1844 English astronomer who described them : the row of brilliant points of sunlight shining through valleys on the edge of the moon that are seen for a …   Useful english dictionary

  • Baily's beads — Bai′ly s beads′ [[t]ˈbeɪ liz[/t]] n. pl. astron. spots of sunlight encircling the moon immediately before and after a total solar eclipse • Etymology: 1865–70; after Francis Baily (1774–1844), English astronomer …   From formal English to slang

  • Baily's beads — /bay leez/ spots of light that appear to encircle the moon, resembling a string of luminous beads, visible immediately before and after a total eclipse, caused by the sun s light shining between the mountains on the moon s surface. Cf. diamond… …   Universalium

  • Baily's beads — plural noun Astronomy a string of bright points seen at the edge of the darkened moon at the beginning or end of totality in an eclipse of the sun, caused by the uneven lunar topography. Origin C19: named after the English astronomer Francis… …   English new terms dictionary

  • Bailey's beads — Bailey s beads, = Baily s beads. (Cf. ↑Baily s beads) …   Useful english dictionary

  • Bai|ly's beads — «BAY leez», the last rays of direct sunlight observable before a total eclipse of the sun, broken up by irregularities of the moon s limb, briefly resembling a crescent shaped string of glittering white gems. Also, Bailey s beads. ╂[< Francis… …   Useful english dictionary

  • Baily, Francis — ▪ British astronomer born April 28, 1774, Newbury, Berkshire, Eng. died Aug. 30, 1844, London  astronomer who detected the phenomenon called “Baily s beads” during an annular eclipse of the Sun on May 15, 1836. His vivid description aroused new… …   Universalium

  • Francis Baily — Infobox Scientist name = Francis Baily box width = image width = 150px caption = Royal Astronomical Society photo birth date = 28 April 1774 birth place = Newbury in Berkshire death date = 30 August 1844 death place = London residence =… …   Wikipedia

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