INFRA- ASTRONOMY 5 3 



April 4. New planet's orbit has become parabolic 

 under influence of cosmic perturbations, and the 

 planet will be lost to our system. 



(Terrestrial Note. The above entries represent a 

 case of ionisation by ultra-violet light.) 



Year 5352, June 16. The approaching conjunc- 

 tion is expected to pass off without unusual develop- 

 ments, in spite of the cosmic perturbations, which 

 are too feeble to affect Tertia's orbit. 



Nov. 5. A pulse of unusual strength travelled 

 through our system to-day. It was first detected at 

 9.15 A.M., when Tertia began to show a considerable 

 acceleration. At noon a similar acceleration was 

 observed in Secunda, and Prima, now in opposition, 

 showed a retardation, first discovered at 4 P.M. The 

 pulse lasted for about half-an-hour. 



Nov. 6. Two more pulses travelled through our 

 system to-day, one beginning at 2 A.M. and the other 

 at 4.30 A.M. 



Nov. 7. Four more pulses to-day, one in the 

 morning and three in the afternoon. The pulses are 

 now ascribed to collisions of the New Planet of 5285 

 with the system of Gamma, which is approaching. 



Nov. 10. Tertia appears to be definitely lost. 

 The pulses at conjunction sufficed to make her orbit 

 hyperbolic. 



Year 5362, July 15. Tertia has dwindled to a 

 star of 12th magnitude. Gamma is approaching at 

 a speed of about 10 4 cm. per second. 



