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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 right half of the moon is bright and the left half of the moon is dark

First quarter moon

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图注: The first quarter moon photographed from the Northern Hemisphere (USA). At 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 1.37 MB)


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)


The left half of the moon is bright and the right half is dark.

First quarter moon

图像

图注: The first quarter moon photographed from New Zealand. As half of the moon's illuminated half is visible, this is phase is popularly know as half moon.
来源: Dave Young / dcysurfer
来源链接

词汇表: 月相 , 弦月 , 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 896.76 kB)


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

图像

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)


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