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Source 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."
Scholar Source Context
Document identity
localId
12038
label
Diagram of the Phases of the Moon
core
obj
dtoType
object
citationUrl
pageCount
2
Source metadata
id
12038
sourceUrl
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
citationUrl
rightsUri
CC0
language
en
genreSpecific
illuminated manuscripts
imageCount
2
pageCount
2
source
import
dimensions
units
cm
width
26.7
height
15.5
dimensionsRaw
H: 10 1/2 × W: 6 1/8 in. (26.7 × 15.5 cm)
Source extras
style
Romanesque
med
ink and pigments on medium-weight parchment
creator_ids
8737
6197
collection_ids
MSS
exhibition_ids
none
Page inventory
seq
1
type
photo
mediaId
234526aa8afde968
hasOcr
no
hasDescription
no
seq
2
type
photo
mediaId
b74c11b4b16596ba
hasOcr
no
hasDescription
no