Optical monitoring of quasars and BL Lacertae objects. II

Details Optical monitoring of quasars and BL Lacertae objects. II Optical monitoring of quasars and BL Lacertae objects. II

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...88..225s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 88, no. 2, May 1991, p. 225-231. Research supported by Yrjo

Astronomy and Astrophysics

Astrophysics

49

Astronomical Photography, Bl Lacertae Objects, Quasars, Visual Photometry, Blazars, Light Curve, Telescopes, Variable Stars

Scientific paper

Optical data are presented for 12 blazars monitored via photographic observations during the years 1985-1989 at Turku University Observatory. The emphasis is on the 0735 + 178 (PKS), 0754 + 100 (OI 090.4), 2200 + 420 (BL Lac), and 0851 + or - 202 (OJ 287), which were observed, respectively 32, 19, 28, and 64 times during these years. The observations were made with the 70-cm Schmidt telescope.

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