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2015BAVSR..64..154G - BAV Rundbrief, 64, 154 (2015/September-0)
Optisches Langzeitverhalten der Radioquelle OQ 208.
GEFFERT M., BAUMGAERTNER N., BRAUER A.-S., CHATZIGEORGIOU R. and KASHTANJEVA L.
Abstract (from CDS):
On plates of the "Sammlung Historischer Himmelsaufnahmen" of Bonn university we have determined 15 new B magnitudes of the quasar OQ 208 for three epochs (1915, 1947 and 1980). Our data show a decrease in B-magnitude of about one magnitude for OQ 208 from 1915 to 1980. We discuss our results in comparison with the ones obtained by two other groups.
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