Page:Mathematical collections and translations, in two tomes - Salusbury (1661).djvu/304

 {|
 * |13254
 * |40886
 * |79524
 * |106032
 * |106032
 * |53016
 * |1830
 * |291 | 5419 | 03044 | 175 | 5419
 * |25016
 * |181
 * }
 * |106032
 * |53016
 * |1830
 * |291 | 5419 | 03044 | 175 | 5419
 * |25016
 * |181
 * }
 * |291 | 5419 | 03044 | 175 | 5419
 * |25016
 * |181
 * }
 * |181
 * }
 * }

Let us come to the fourth working, and the rest with the same rule, and with the chords and sines found out by the Authour himself; in this the Parallax is 14 m. prim. and the height found lesse than 10 semidiameters, and diminishing the Parallax from 14 min. to 4 min. yet neverthelesse you see that the star doth not elevate full 31 semidiameters. Therefore 10 min. in 14 min. doth not suffice.

In the fifth operation of the Authour we have the sines and the chord as you see, and the Parallax is 0 gr. 42 m. 30 sec. which rendereth the height of the star about 4 semidiameters, and correcting the Parallax, with reducing it from 0 gr. 42 m. 30 sec. to 0 gr. 5 m. onely, doth not suffice to raise it to so much as 28 semidiameters, the correction therefore of 0 gr. 37 m. 30 sec. is too little.