CELESTIAL MECHANICS: LEUSCHNER 



73 



(911) AGAMEMNON, 1919 FD. 



This planet was discovered by Reinmuth 1 at Heidelberg on March 

 19, 1919. 



The nature of its motion (Jupiter group) was noted about the 

 same time by Palisa and Berberich. 2 The preliminary elements A 

 by Berberich are published in A. N. Vol. 208, p. 332. A comparison 

 between computation and observation 3 for 1919 May 20, gives 

 Aa = 4 s AS = 2'. 



Elements A are brought forward to mean equinox of 1925.0 and 

 with an ephemeris are published in Kleine Planeten for 1920, p. 25 

 and p. 47. 



An observation 4 on March 11, 1920, gives a correction to the 

 ephemeris of +l m -5 in right ascension and 18' in declination. 



An ephemeris for 1921 is given in Kleine Planeten for 1921, p. 20. 



REFERENCES 



1 A. N. vol. 208, p. 231. Royal A. S. 210, p. 241. 



vol. 80, p. 405, 406. 8 A. N. vol. 210, p. 244. 



2 A. N. vol. 208, p. 331. A. N. vol. 4 B-Z der A. N. No. 13, 1920. 



Elements (911) Agamemnon (1919 FD.) 

 Epoch M.T. M. cu i 



A 1919 Mar. 19.5 Grw. 8848'19" 7846'08" 33655'10" 2156'50" 



< /A Equinox Authority Remarks 



455'43" 303".190 1919.0 Berberich. Preliminary orbit. 



TABLE 22. References for Observations of (911) Agamemnon (1919 FD) 



*Discovery Date. 



