Photometric Catalogue of Quasars and Other Point Sources in the Sloan Digital Sky Survey

An updated version of this paper is under preparation. This version suffer the inclusion of a large number of fake detections in the catalogue. Please wait for the revised version or contact the authors. ---------------thanks ----------------------------------- We present a catalogue of about 8.6 million unresolved photometric detections in the Sloan Digital Sky Survey Seventh Data Release classifying them into stars, galaxies and quasars using a machine learning classifier trained on a subset of spectroscopically confirmed objects. Our catalogue consists of 4,046,117 quasars, 3,922,329 stars and 656,456 unresolved galaxies from 17th to 24th magnitude in the SDSS $i$-band. This has enabled us to identify $\sim$ 4 times more quasar candidates than the largest photometric quasar catalogue presently available. The quasar surface density in our catalogue is expected to have a completeness of more than 90 per cent up to 24th magnitude within the colour window we have studied.