Photographic photometry of compact extragalactic objects Optical variability of the quasar 3C 345

Details Photographic photometry of compact extragalactic objects Optical variability of the quasar 3C 345 Photographic photometry of compact extragalactic objects Optical variability of the quasar 3C 345

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985azh....62..672b&link_type=abstract

(Astronomicheskii Zhurnal, vol. 62, July-Aug. 1985, p. 672-680) Soviet Astronomy (ISSN 0038-5301), vol. 29, July-Aug. 1985, p. 3

Astronomy and Astrophysics

Astronomy

3

Astronomical Photography, Astronomical Photometry, Quasars, Magnitude, Statistical Distributions, Ubv Spectra, Variability

Scientific paper

The results of 11-years photographic observations of optical variability of the quasar 3C 345 are presented. A flare with a timescale of the order of one year, similar to those of 1967 and 1971, was observed in 1982. From a comparison of the obtained series of observations with those of the Rosemary Hill Observatory, a conclusion is drawn on the absence of systematic variability at a timescale of 5 - 20 hours exceeding 0m.2 in magnitude.

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