yaohua2000
Feb 3 2007, 06:52 AM
Ls = 180°
2007-02-07 18:29 UTC
For Sprit and Opportunity, days will be longer than nights after the equinox.
helvick
Feb 3 2007, 09:05 AM
That would be "Northern Hemisphere Autumnal Equinox" - we're approaching Vernal Equinox for our the two rovers since they are in the southern hemisphere.