IHW COMET RSOH NO-DATA DATA RECORD CROMMELIN V1.0

In preparation for the concerted international study of Comet Halley, the IHW conducted a trial run with observations of Comet Crommelin, largely during February and...为筹备哈雷彗星（Comet Halley）的国际联合研究，IHW针对克鲁姆林彗星（Comet Crommelin）开展了试观测工作，观测主要在2月及……期间进行。