Z e n t r a l i n s t i t u t f u r A s t r o p h y s i k d e r A k a d e m i e d e r W i s s c n s c l i a f t e n d e r D U R'I'hc mechanical and electronic tlcvice of thc microphotometer is tlcscribcd. The on-line d a t a compression is pcrformed in t h c domain of t h e H A A R transform of thc mcasurcment points. This method provides a fast treatment of t h e measurement d a t a in the computer and changes t h e large d a t a material sampled in equidistant stcps wliosc width can bc chosen b y t h c seeing condition into a non-cquidistant grid whose widths depend only on t h e characteristiclcngtli of t h e signal. The grain noise is climinatcd. An automatical discrimination bctwecn stars and galaxies is possible. T h e accuracy of thc photoinctry was tested hy comparing with t h c photoelectrically detcrminerl B-brightness distribution of M 81.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.