Anna_marie
Jun 11, 2009, 10:15 AM
Can anyone please explain what the significance of the ecliptic for me.
Capuchin
Jun 12, 2009, 01:30 AM
The ecliptic is the path that the sun traces out over the course of the year. Early astronomers used this path as the reference plane for their star co-ordinate systems, but now equatorial co-ordinates (with the reference plane of the Earth's equator) are much more popular.