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The moon appears as a disk. The left half of the moon is bright but the right half is dark.

Last quarter moon

图像

图注: This shows the last quarter moon photographed from the Northern Hemisphere (USA). During this phase half of the moon's illuminated half is visible. This phase is popularly known as half moon.
来源: Stephen Rahn
来源链接

词汇表: 月相 , 弦月 , 弦月
分类: 太阳系

授权许可: CC0 1.0 通用 (CC0 1.0) 公共领域贡献 CC0 1.0 通用 (CC0 1.0) 公共领域贡献 图标

文件 ( 图像 1.11 MB)


3 images of the moon. The dark area on the left of each lunar image grows from a crescent to cover half the moon

Waning gibbous to last quarter

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图注: Three images of the moon from the waning gibbous phase (left) to the last quarter phase (right) taken from the Southern Hemisphere (New Zealand). The illuminated area visible appears to shrink as the images progress. In the last phase visible here (the last quarter) only half of the moon's illuminated half is visible. This phase is popularly known as half moon.
来源: Dave Young / dcysurfer
来源链接

词汇表: 月相 , 弦月 , 亏凸月 , 弦月
分类: 太阳系

授权许可: 知识共享许可协议 Attribution 2.0 Generic 知识共享许可协议 Attribution 2.0 Generic 图标

文件 ( 图像 1.45 MB)


Most of the moon is dark, but a thin crescent on the left is light

Waxing crescent moon

图像

图注: The waxing crescent moon photographed from the Southern Hemisphere (New Zealand). During this lunar phase most of the moon's illuminated half is not visible from the Earth so only a thin crescent of the moon appears light.
来源: Paul Stewart / astrostew
来源链接

词汇表: 月相 , 蛾眉月
分类: 太阳系

授权许可: 知识共享许可协议 Attribution 2.0 Generic 知识共享许可协议 Attribution 2.0 Generic 图标

文件 ( 图像 777.57 kB)


The moon is mostly dark but a thin crescent on the right is illuminated.

Waxing Crescent Moon

图像

图注: The waxing crescent moon viewed from the Northern Hemisphere (USA). In this phase, only a small fraction of the moon's illuminated half is visible, leading to its thin crescent shape.
来源: Stephen Rahn
来源链接

词汇表: 月相 , 蛾眉月
分类: 太阳系

授权许可: CC0 1.0 通用 (CC0 1.0) 公共领域贡献 CC0 1.0 通用 (CC0 1.0) 公共领域贡献 图标

文件 ( 图像 1.04 MB)


The moon is mostly dark with only a thin bright crescent on the left is visible.

Waning crescent moon

图像

图注: The waning crescent moon photographed from the Northern Hemisphere (USA). At this phase, most of the moon's illuminated half is not visible from Earth so only a thin, bright crescent appears.
来源: Stephen Rahn
来源链接

词汇表: 月相 , 残月
分类: 太阳系

授权许可: CC0 1.0 通用 (CC0 1.0) 公共领域贡献 CC0 1.0 通用 (CC0 1.0) 公共领域贡献 图标

文件 ( 图像 8.14 MB)


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