Home S3 Seminar: A new recalibration of the group sunspot number series (T. Chatzistergos) S3 Seminar: A new recalibration of the group sunspot number series (T. Chatzistergos) Date: Nov 9, 2016 Time: 02:00 PM - 02:30 PM (Local Time Germany) Speaker: Theodosios Chatzistergos IMPRS Location: MPS Room: Lecture Hall Host: Sonja Schuh