GENERAL MOVEMENT OF THE STARS. 



223 



M. Maxller afterwards gives in detail, by moans of long tables, the 

 positions and proper movements of 861 principal stars observed by 

 Bradley, calculated for the epoch of 1840, and subdivided into differ- 

 ent sections according to the distances of those stars from the central 

 point or from Alcyone.* The following table presents a summary of 

 the results: 



Place of the stars. 



Tent i ul point Alcyone 



Pleiades. 



Z me of 1° to 5° of distance from Alcyone 



/. me of 5° to 10O 



Zone of 103 to 20° 



Zone of 20 3 to 30° 



Z lie Of 3h° to 4(3° 



Zone of S2°.5 to 97°.55 



11 



12 



:;i 

 101 



159 

 224 

 302 



~ tz Ti 



5 I 



" S a 



0. 0(573 

 0. 0699 

 0. 0702 

 0. 0G!) ( J 

 0. 0890 

 0. 1067 

 0. 109G 

 0. 1183 



bD u 



d to 



1.6 



13.3 



29.9 

 36.1 

 4 4. 3 

 48.6 

 46. 1 

 65.2 



These values, it will be seen, satisfy in general the principal con- 

 ditions announced above; but as the author has since much extended 

 the field of his researches we shall pass at once to the exposition of 

 his last labors, in what relates to their principal object. 

 . M. Meedler has devoted the greater part of the 14th volume of the 

 observations at Dorpat to a new catalogue of 3,222 stars, of from the 

 1st to the 7th magnitude, observed by Bradley, of which the posi- 

 tions in right ascension and in declination are calculated by himself 

 for the beginning of 1850, as well after the old as the new observa- 

 tions. These values are accompanied by the precession and secular 

 movement proper of each star; the latter expressed both in right 



tision and declination, and in polar co-ordinates. This catalogue 

 is subdivided into four sections ranged each in the order of right 

 ascensions. The first is composed of stars situated to the south of 



1 quator as far as to 30° of south declination; the second of those 

 north of the equator up to 30° of north declination; the third of stars 

 situated between 30° and 60° of north declination; and the fourth of 

 i no.. ■ comprised between the north pole and the 60th degree of north 

 1:011. The author has also calculated, after the observations 

 of Lacaille and of Johnson, the proper movements of 97 stars of first 



tirth magnitude, whose southern declination is more than 30 . 



c-M. Msedler, in bis calculations of the positions of stars, has made use, among others, 

 rminationsof right ascensions resulting from obtei vat ions made at Geneva under 

 the din 1 tion of Professor Piantamour, and he ju Iges th< m c mparable in point 



: to those obtained at the principal observatories of Europe. 



