1
B A D736Chord13254AnglesB D C15552Sine40886B C D010Sine291132544088679524106032106032530161830291541903044175541925016181Let 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
B A DChord8142AnglesB D CSine43235B C DSine4074323581428647017294043235345880301163520193704rule, 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
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
recting 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
midiameters, the correction therefore of 0 gr. 37 m. 30 ſec. is
too
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
recting 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
midiameters, the correction therefore of 0 gr. 37 m. 30 ſec. is
too