ASTRONOMY: C. D. PERRINE 
373 
;80 
-80- 
2S0 
I 
ZO IZO ISO 
I I I 
I 
IZO 
I 
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r6 
"5+40- 
+ 80H 
FIG. 1. APHELIA OF MAJOR PLANETS 
Dotted line is the Galactic Plane 
180" Z80 2.0 12.0 180° Z80 2-0 12,0 l80° 
I I I I I I II 
FIG. 2. APHELIA OF 821 MINOR PLANETS 
A. Nos. 1 to 120 inclusive • B. Nos. 121 to 320 inclusive 
C. Nos. 321 to 560 inclusive D. Nos. 561 to 821 inclusive 
E Frequency curve in longitude (all) . 
The following is a summary of the conclusions indicated by this 
investigation : 
1. The axes of the orbits of the major planets, minor planets and 
short-period comets are all closely related to the ecliptic plane. This 
condition has been known in a general way. 
