CELESTIAL MECHANICS: LEUSCHNER 



71 



and Patroclus. He finds the maximum of Priamus (1986.8) takes 

 place when the planet is on a line with and between the point of 

 oscillation and the Sun, and the minimum for Patroclus (1985.8) when 

 the planet is on the line with and beyond the point of oscillation and 

 the Sun. This verified his previous conclusion 2 that the two planets 

 are diametrically opposite in their paths of oscillation. 



A set of elements and an ephemeris are published in Kleine Planeten 

 for 1920. The elements are probably Elements B, brought up to 

 epoch 1925. An ephemeris is published in Kleine Planeten for 1921. 



In A. N. Vol. 215, No. 5147, Wilkens outlines his investigation 

 regarding the secular variations of the major axes of the orbits for 

 the Trojan group. 



REFERENCES 



'A. N. vol. 205, p. 141. M. N. 78, 

 p. 289. 



2 A. N. vol. 207, p. 9. 



8 A. N. vol. 207, p. 183. 



4 A. N. vol. 205, No. 4906. 



'A. N. vol. 206, No. 4937. 



A. N. vol.208, No. 4984. 



7 A. N. vol. 209, No. 5016. 



8 A. N. vol. 215, No. 5147. 



9 A. N. vol. 206, No. 4945. 



TABLE 20. Elements (884) Priamus (1917 CQ.) 



