Depression Angles By William Gewirtz Introduction: Depression angles measure the level of darkness or illumination prior to sunrise and, in a parallel fashion, after sunset. There are two halakhic disagreements that might appear to relate to the use of depression angles. First, there is a long-standing argument about what defines the transition from one day to the next and what is (merely) an indicator that the transition has occurred. Some consider the appearance of three stars as the basis of … Continue reading Depression Angles