Part, §

 1 Text,  8 |       the distance of any one star. As the earth swings through
 2 Text,  9 |    was obliged to observe the star, or upon the going of his
 3 Text,  9 |         showed that a certain star in the constellation Cygnus
 4 Text,  9 |      that Bessel found in his star. And yet this star is among
 5 Text,  9 |     in his star. And yet this star is among the few nearest
 6 Text,  9 |       our system. The nearest star of all, Alpha Centauri,
 7 Text,  9 |       half as far as Bessel's star, while Sirius and one or
 8 Text,  14|    average, contains a single star. This method gives a thickness
 9 Text,  16|  change in the direction of a star produced by the swing of
10 Text,  16|     distance. But since every star has its own motion, it is
11 Text,  16| apparent motion is due to the star itself, and how much to
12 Text,  16|        The proper motion of a star can be determined only by
13 Text,  16|    single position of any one star involves a good deal of