Copernican Orrery

A Copernican-style Orrery showing the positions of the 8 planets and their primary moons as well as our moon's phase.

The Orrery is a model of the solar system as view from celestial north, and orientated

such that solstices occur when the earth is due-north (top, winter solstice) or

south (bottom, summer solstice) and the equinoxes are east (right, autumnal equinox)

and west (left, vernal equinox). All orbits are assumed to be perfect circles.

The position of the Earth and Moon are fairly accurate, as are their orbits. The remaining planets positions are approximate, but close enough considering the size of the typical phone or tablet screen. The starting positions of the moons other than that of the Earth is not accurate. The orbital periods of all planets and moons is accurate relative to the other planets and moons.

This app should be considered simply something fun to look at, but not anything to be taken too seriously.</div> <div jsname="WJz9Hc" style="display:none">一场哥白尼式的太阳系仪显示8行星的位置和他们的主要卫星，以及我们的月球的阶段。

搜索结果

在太阳系仪是太阳系的模型视图从天体北，朝向的

这样，当地球是正北方（顶部，冬至）发生夏至，冬至或

南（底部，夏至）和分点是东（右，秋分）

和西部（左，春分）。所有轨道被认为是完美的圆形。

搜索结果

地球和月亮的位置是相当准确的，因为是它们的轨道。其余的行星的位置是近似的，但足够近考虑典型的手机或平板电脑的屏幕大小。比地球的其他的卫星的起始位置是不准确的。所有的行星和卫星的轨道周期相对于其他行星和卫星准确。

搜索结果

这个程序应该被认为只是好玩的东西来看待，而是过于重视没有什么。</div> <div class="show-more-end">