3 ms·
http://en.wikipedia.org/wiki/Longitude_of_vernal_equinox http://en.wikipedia.org/wiki/Longitude_of_vernal_equinox
by adnanh 12y ago
http://en.wikipedia.org/wiki/Longitude_of_vernal_equinox http://en.wikipedia.org/wiki/Longitude_of_vernal_equinox