3 ms·
The standard for astronomical measurements today is the J2000.0 epoch. http://en.wikipedia.org/wiki/Epoch_%28astronomy%29#Julian_years_and_J2000 http://en.wiki
by michaelhoffman 13y ago
The standard for astronomical measurements today is the J2000.0 epoch.
http://en.wikipedia.org/wiki/Epoch_%28astronomy%29#Julian_years_and_J2000 http://en.wikipedia.org/wiki/Epoch_%28astronomy%29#Julian_ye...