Posters available in 20*30cm, 30*45cm and 40*60cm
Excellent quality photographic paper
Double conjunctions; Venus in its orbit at Venus/Jupiter and Venus/Neptune conjunctions,
1,200 times, beginning 17 March 2000 (Ve/Ne), period ca. 379.14 years.
‘Double conjunctions’: A method of portraying geometrically the positions of a
planet at its conjunctions with two others. Chronologically sequential positions are
linked regardless of which of the two planets takes up the conjunction position. Copyright 2010 by Keplerstern Verlag; Hamburg
Detailed explanation, pdf-file