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 月出和月落：再至林思云先生 |
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作者：Anonymous 在 罕见奇谈 发贴, 来自 http://www.hjclub.org
农历初七初八左右，月亮在中午时分升起，（其时因大白天不容易注意到），而在午夜时分落山。兹引下文为证。（http://www.enchantedlearning.com/subjects/astronomy/moon/Phases.shtml）张继之诗不余欺也！
Moonrise from Earth:
The moon rises and sets every day, appearing on the horizon just like the sun. The time depends on the phase of the
moon. It rises about 30 to 70 minutes later each day than the previous day, so the moon is out during daytime as often is
it's out at night. At the time of the new moon, the moon rises at about the same time the sun rises, and it sets at about the
same time the sun sets. As the days go by (as it waxes to become a crescent moon, a half moon, and a gibbous moon, on
the way to a full moon), the moon rises during daytime (after the sun rises), rising later each day, and it sets at nighttime,
setting later and later each night. At the full moon, the times of moonrise and moonset have advanced so that the moon
rises about the same time the sun sets, and the moon sets at about the same time the sun rises. As the moon wanes
(becoming a half moon and a crescent moon, on the way to a new moon), the moon rises during the night, after sunset,
rising later each night. It then sets in the daytime, after the sun rises. Eventually, the moon rises so late at night that it's
actually rising around sunrise, and it's setting around sunset. That's when it's a new moon once again.
作者：Anonymous 在 罕见奇谈 发贴, 来自 http://www.hjclub.org |
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