Another eight years later the node has moved beyond the ecliptic limit, and no transit can take place. |
The statue's sky globe, which is 26 inches in diameter, shows 41 Greek constellations, as well as the celestial equator, tropics and ecliptic. |
The nodical period is the period between two crossings of the ecliptic in the same direction. |
The other planets though also move across the sky on paths close to the ecliptic. |
The Moon's Nodes are points in space representing the points where the moon's orbit around the earth crosses the ecliptic. |
The planets all orbit the Sun in the same direction, with orbital planes inclined slightly to the ecliptic. |