Franz Heeke: Sun's Motion and Sunspot Cycles

Figure 1: Path of sun's center about the center of mass of the solar system, from 1968 to 2013

Source - Paul D. Jose: Sun's motion and sunspots; The Astronomical Journal; Vol. 70, Nr. 3 (1965), Page 193-200. (Markings: Heeke) Unit of time (dot to dot): 200 days.

Table 1: Sun's motion over time

The numbers along the curve of Fig. 1  refer to following dates:

 1.   1977-02-26 
JD  244  3200		  6.    1988-02-09
 JD  244  7200		  11.   1999-01-22
 JD    245  1200		 16.    2010-01-04
 JD   245  5200
 2.   1979-05-07
       244  4000		  7.    1990-04-19
          244  8000 		  12.   2001-04-01
        245  2000 		 17.    2012-03-13
         245  6000
 3.   1981-07-15
       244  4800		  8.    1992-06-27
         244  8800		  13.    2003-06-09
          245  2800
 4.   1983-09-23
       244  5600		  9.    1994-09-05
         244  9600		  14.    2005-08-18
          245  3600 
 5.   1985-12-01
       244  6400		 10.   1996-11-13
        245  0400		  15.    2007-10-26
           245  4400

Homepage Heeke; 3-98 (updated 5-2004)

Back to   Index