http://cs.astronomy.com/asycs/forums/27.aspxenCommunityServer 2007 SP2 (Build: 20611.960)http://cs.astronomy.com/asycs/forums/thread/419971.aspxThu, 25 Jun 2009 09:32:09 GMT5cad643e-09e9-4c3f-b1be-205e244b4f67:419971ricci0http://cs.astronomy.com/asycs/forums/thread/419971.aspxhttp://cs.astronomy.com/asycs/forums/commentrss.aspx?SectionID=27&PostID=419971<p>If we define alignement the event when all planets have the same heliocentric longitude, from Mercury to Neptune, also if we neglet the differences in latitude and the orbital inclination.<br />In the best case, we can consider that the planets can be in the same sector, a very narrow sector (heliocentric sector!), the minimum sector with 8 planets is only 43° in a time span of 9000 years</p> <p><a href="http://www.pierpaoloricci.it/dati/allineamentiplanetari_eng.htm">www.pierpaoloricci.it/dati/allineamentiplanetari_eng.htm</a></p> <p>&nbsp;</p>