Rechnergesteuerte schnelle Photometrie am Beispiel der Bedeckung von 57 Orionis durch den Mond. II. (Mitteilungen der Universitäts-Sternwarte zu Jena Nr. 155)

The needed formulae for the reduction of lunar occulations are presented and used for the treatment of the occultation data of 57 Orionis. A computing method for the determination of the object profile is given and the influence of noise is discussed. The results for the spectroscopic binary 57 Orionis cannot be explained by the parameters published.