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This diagram illustrates the Moon's phases in relation to its distance from the Sun. The Earth at center is surrounded by three concentric rings. Along the inner ring are seven discs showing the phases of the waxing and waning moon, indicated by pale yellow wash emanating from the Sun, at right. As the diagram makes clear, and as medieval authorities recognized, the Moon's phases are determined by the extent of its illumination by the Sun. The cycle begins with the new, crescent Moon at upper right (approximately 2 o'clock) and moves counterclockwise, with the days of the lunar cycle given in red. It ends when the Moon is not visible -- that is, when it lies directly between the Earth and Sun, the latter labeled "Sol XXX."

Page data

Page
2
Source index
0
Type
photo
Media ID
b74c11b4b16596ba
Size
unknown

Document data

ID
12038
Core
obj
Type
object
DTO data
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    "title": "Diagram of the Phases of the Moon",
    "description": "This diagram illustrates the Moon's phases in relation to its distance from the Sun. The Earth at center is surrounded by three concentric rings. Along the inner ring are seven discs showing the phases of the waxing and waning moon, indicated by pale yellow wash emanating from the Sun, at right. As the diagram makes clear, and as medieval authorities recognized, the Moon's phases are determined by the extent of its illumination by the Sun. The cycle begins with the new, crescent Moon at upper right (approximately 2 o'clock) and moves counterclockwise, with the days of the lunar cycle given in red. It ends when the Moon is not visible -- that is, when it lies directly between the Earth and Sun, the latter labeled \"Sol XXX.\"",
    "provenance": "Gruel and Englemann Collection, Paris [1]; acquired  by Henry Walters, Baltimore, 1903; by bequest to Walters Art Museum, 1931.[1] no. 131, bookplate on inside upper board",
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Document identity
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Document source metadata
{
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    "contentType": "object",
    "stage": "normalized",
    "title": "Diagram of the Phases of the Moon",
    "description": "This diagram illustrates the Moon's phases in relation to its distance from the Sun. The Earth at center is surrounded by three concentric rings. Along the inner ring are seven discs showing the phases of the waxing and waning moon, indicated by pale yellow wash emanating from the Sun, at right. As the diagram makes clear, and as medieval authorities recognized, the Moon's phases are determined by the extent of its illumination by the Sun. The cycle begins with the new, crescent Moon at upper right (approximately 2 o'clock) and moves counterclockwise, with the days of the lunar cycle given in red. It ends when the Moon is not visible -- that is, when it lies directly between the Earth and Sun, the latter labeled \"Sol XXX.\"",
    "provenance": "Gruel and Englemann Collection, Paris [1]; acquired  by Henry Walters, Baltimore, 1903; by bequest to Walters Art Museum, 1931.[1] no. 131, bookplate on inside upper board",
    "date": "late 12th century",
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Document source extras
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