Older drift chartsNote: After viewing a chart, click on the Back button of your browser to return to this page... > GRS and Hollow, 1830-92Red dots, centre; blue "<", p. end; green ">", f. end; black dotted line, zero meridian of System 2 > GRS, 1964-2007 in System 2, 60-day running means > Long-lived STC White Ovals, 1970-2006 Blue, BC/BE/BA; brown, DE; green, FA; red, GRS > NEqC, 1977-79 Black dots, dark features; red dots, bright features > Beer and Mädler's spots, 1834/35 > NTrC, 1884-1900 Black dots, dark features; red dots, bright features; green line, zero meridian of System 2 ----- To visit the main page of the JUPOS project, go to https://jupos.org or https://jupos.hier-im-netz.de |
