N=P P=01664 MBB ref=MBB Maximilian Hell Ephemerides astronomicæ anni bissexti 1776 ad meridianum vindobonensem Astronomia yLAT Viennæ 1775 y17 y177 MAXIMILIAN HELL EPHEMERIDES ASTRONOMICE ANNI BISSEXTI 1776 AD MERIDIANUM VINDOBONENSEM ASTRONOMIA VIENNE EFEMERIDES Viena anyÁustria anyAustria anyEuropa