Optical monitoring of OJ 287 during the 1982-83 observing season

Details Optical monitoring of OJ 287 during the 1982-83 observing season Optical monitoring of OJ 287 during the 1982-83 observing season

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..705c&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Sept. 1984, p. 705, 706.

Other

12

Bl Lacertae Objects, Brightness Distribution, Visible Spectrum, Astronomical Photometry, Tables (Data)

Scientific paper

A table is presented listing the photographically-determined blue magnitudes of OJ 287 obtained in the F/15 Cassegrain focus with the Northwestewn University 1-meter reflecting telescope. The observations were carried out using a standard GG13 filter and 103a-0 emulsion. A secular trend is found in the average brightness of OJ 287 during the 1982-83 observing season, amounting to about 0.004 m per day. This secular trend is similar to that present during other seasons when OJ 287 is not at its base level of luminosity. The amplitude of the total range of optical variations of OJ 287 during the 1982-83 observing season was about 1.5 magnitudes, which is about 0.25 magnitude larger than that reported for most previous seasons.

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