950 



On the Periodic Times of Saturn's Pings. 



periodic time of only 5 hours 45 minutes, while the axial 

 rotation ol Saturn is 10 hours 13 minutes. 



The same conclusion may also be drawn with reference to 

 the origin of the two satellites of Mars, as Phobos has a 

 period of only 7 hours 39 minutes, while the axial rotation 

 of the planet is 24 hours 37 minutes. 



The comparative minuteness of these bodies, which are 

 estimated to be less than 10 miles in diameter, indicates them 

 as ejectamenta rather than the successive condensations of a 

 nebular substance surrounding the planet. 



Saturn's dusky ring and the inner satellite of Mars are the 

 onlj r bodies in the solar system that revolve in a shorter time 

 than their primaries. 



Elements of Saturn's Rings. 

 Mimas=3'16. 





Distance from centre 

 of Saturn. 



Time of 



Revolution. 



Kings. 



Sat. Units. 



Miles. 



h . m . 





230 



026 



217 



204 



007 



1-97 



47 



1-735 



1-50 



1-50 



0-23 



1-385 



1-27 



027 



1-00 



316 



84,937 



9,602 

 80,138 

 75,337 



2,585 

 72,752 

 17,357 

 64,073 

 55,395 

 55,395 



8,493 

 51,148 

 46,901 



9,971 

 36,930 



116,698 



14 4 



12 51 

 11 44 



11 8 



9 12 

 7 23 

 7 23 



»? >> 

 6 33 

 5 45 

 >» >» 

 10 13 



22 37 



Breadth 



Mid-breadth 



Interval 



Exterior B 





Mid-breadth 









Mid-breadth 



Ball Space 



Sat. Ball 







