Observational Forms of Astronomical Observatory in Belgrade

Sonja Vidojević , Stevo Šegan

Cultural and scientific importance of AOB astronomical observation digitalization recorded at observation forms. One solution for on-line and off-line data input and observational data access. Recalculation and control of obtained results. Example of observation reduction performed by Time service on little passage instrument (D=100 mm, F=1000 mm). Determining the longitude of observation location by absolute method with Mayer’s formulas for reduction of observation moment to meridian. Possibilities for local and regional cooperation and opening the way to cooperation with UE by joining the IVOA (International Virtual Observatory Alliance).