analemma

analemma

1. One simple use for this is to display the Sun's "analemma" - the "figure eight" shape traced out by the Sun at noon over the course of a year.

一个例子是显示太阳的“日行迹”-你一年每天在同一时间记录太阳在天空的位置,就得到太阳的8字型轨迹。

2. What he introduced included oval projection, stereographic projection, analemma and scenography etc.

关于投影几何，他带来的有椭圆投影、球极投影、平行正投影和透视法等。

3. The tilt of planet Earth's axis and the variation in speed as it moves around its orbit combine to produce the graceful analemma curve.

地球自转轴的倾斜和它绕轨道运行速度的变化共同形成了这一道优美的日形迹曲线。

4. The Sun will appear at its highest point of the analemma during summer and at its lowest during winter.

太阳在夏天会出现在八字曲线的最高点，在冬天则出现在最低点。

5. The answer is no, and the shape traced out by the Sun over the course of a year is called an analemma.

答案是不会，太阳一年中运行的轨迹叫做太阳的八字曲线。

6. Explanation: On planet Earth, an analemma is the figure-8 loop you get when you mark the position of the Sun at the same time each day throughout the year.

说明： 在地球上，如果你在一年中每天同一时间、同一地点记录太阳的位置，就会得到一个8字型的日行迹。

7. Explanation: An analemma is that figure-8 curve that you get when you mark the position of the Sun at the same time each day throughout planet Earth's year.

说明： 地球仪8字曲线就是你在地球上一年中的每一天，于同一时间看到太阳的位置，连接起来就形成一条8字形曲线。

8. Explanation: An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day throughout planet Earth's year.

说明：日行迹是一条8字形的曲线，标示了地球全年中每天同一时间太阳所在的位置。