Reply to Kinman concerning 3C 345

Abstract

KINMAN¹ claims (a) that the Yale photographic magnitudes of the quasar 3C 345 disagree systematically by 0.25 m with the Lick ∼B magnitudes; (b) that the Yale magnitudes were affected systematically by the hour angle of the object at the time of observation; and (c) that because the reality of the ∼0.4 m outburst of 3C 345 on the night of June 10–11, 1969, is based on a single observation, this result should be “treated with considerable reserve”. The purpose of this report is to reply in turn to each of these criticisms.