Interpretation of the historic Yemeni reports of supernova SN 1006: early discovery in mid-April 1006 ?

Ralph Neuhaeuser, Dagmar Neuhaeuser, Wafiq Rada +3

The recently published Yemeni observing report about SN 1006 from al-Yamani clearly gives AD 1006 Apr $17\pm 2$ (mid-Rajab 396h) as first observation date. Since this is about 1.5…