Bibcode
                                    
                            Kidger, M. R.; de Diego, J. A.
    Referencia bibliográfica
                                    Astronomy and Astrophysics (ISSN 0004-6361), vol. 227, no. 2, Jan. 1990, p. L25-L28.
Fecha de publicación:
    
                        1
            
                        1990
            
  Número de citas
                                    25
                            Número de citas referidas
                                    25
                            Descripción
                                    This paper reports CCD photometry of 3C345 taken in the summer of 1988
and spring of 1989 which show this object declining to the faintest
magnitude yet recorded in B, of 18.32. A full light curve is presented,
as well as an intraday and a three-week continuous light curve. Rapid
CCD photometry at this faint level reveals the presence of a rapid fade
in the light curve which, if real, is probably the fastest variation
ever seen in this object in terms of magnitudes per hour. The existence
of intraday variability in 3C 345 is now no longer in doubt.