Thank you Yuri:

Parameters are :

Year,month,day, hour, zone time, and longitud.

I will see this address.

Best regards.

Alejandro Fernandez

>What are input parameters and precision required? Usually you can use method described in http://www.engr.mun.ca/~charlesr/virplanetarium/VPbody.html.
>
>>Hi:
>>
>>Someone has written this function in VFP ? (It existing in some C++ compilers)
>>
>>Thanks
>>
>>Alejandro Fernandez