| Here, it is shown projected outward gray to the , along with the Earth's and green | Durham University Department of Physics• |
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| The Astronomical Almanac for the Year 2010 | The ecliptic is a relatively stable reference compared to the celestial equator |
| The plane of the ecliptic intersects the celestial sphere along a black , the same circle on which the Sun seems to move as the Earth orbits it | This is the inclination to the ecliptic of 101,800 CE |
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| The intersections of the ecliptic and the equator on the celestial sphere are the vernal and autumnal red , where the Sun seems to cross the celestial equator |