TABLE 834.— SATELLITE ORBITS* 



735 



Mean distance 

 from planet 



Body (km) 



Earth 



Moon 384,400 



Mars 



Phobos 9,400 



Deimos 23,500 



Jupiter 



V 181,200 



I Io 421,400 



II Europa 670,500 



III Ganymede 1,069,500 



IV CalHsto 1,881,200 



VI 11,500,000 



VII 11,750,000 



X 11,750,000 



VIII 23,500,000 



IX 23,700,000 



XI 22,500,000 



Saturn 



Mimas 185,500 



Enceladus 238,000 



Tethys 294,600 



Dione 377,300 



Rhea 526,900 



Titan 1,220,800 



Hyperion 1,482,000 



Iapetus 3,558,000 



Phoebe 12,950,000 



Uranus 



Miranda 129,700 



Ariel 190,700 



Umbriel 265,700 



Titania 435,800 



Oberon 582,800 



Neptune 



Triton 353,700 



Nereid 5,580,000 



Sidereal 

 period 

 (days) 



27.322 



Vis 

 magnitude 

 at mean opp 



—12.7 



Direction 

 of motion t 



* Compiled bv D. L. Harris, Yerkes Observatory, 

 direct motion, R = retrograde motion. 



t With respect to rotation of planet. D = 



TABLE 835.— NUMBER OF STARS [</> (M)] PER CUBIC PARSEC NEAR THE 



SUN WITH ABSOLUTE (PHOTOGRAPHIC AND VISUAL) 



MAGNITUDES Af — 1/2 TO M + 1 ,/2 * 258 



Prepared by S. W. McCuskey, Case Institute of Technology. 

 8 van Rhijn, Groningen Publ. No. 47, 1936. 



SMITHSONIAN PHYSICAL TABLES 



