The blazar OJ287 is one of the best studied blazars. Due to the importance of the object, the authors have analyzed 400 Sonneberg Sky Patrol Plates for the light evolution of the blazar. They have focused on the time period with poor data coverage.
The blazar OJ287 is one of the best studied blazars. Due to the importance of the object, the authors have analyzed 400 Sonneberg Sky Patrol Plates for the light evolution of the blazar. They have focused on the time period with poor data coverage. (en)