Earth Rotation Websites
Standards of Fundamental Astronomy - Home
SOFA - Standards of Fundamental Astronomy: ANSI C and Fortran 77 libraries providing an authoritative set of algorithms and procedures implementing standard models used in fundamental astronomy
Not Applicable
$
8.95
Your Extra Second
What will you do with your extra second? Donate your Second. A leap second will be added to 2015 to keep atomic clock time in sync with Earth's actual rotational time. Aon will donate CI$ 1 to Cayman's Special Olympics for each valid email submitted up to a maximum of CI$5000.
Not Applicable
$
8.95
