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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1843 edition. Excerpt: ...of Axis (interpolated from Table II.), then when the South mark has been observed; a=s+s- =-o-77+s- ... (6) when the North mark has been observed; os=-Jv"-n+c =-o-57-n+c.... (7) when both marks have been observed; a=j (s-iv"+s-n)=-o-67+j (s-n).. (8) The values of m have been determined from one of the following expressions: m = cot Lat. + a cosec Lat (9) tan Lat. + secant Lat (10) The former was employed on those days when the deviation from the Pole n, and the azimuth a, had been ascertained from observations of the meridian marks, given in Table I.; and the latter, on those days when n had been ascertained, but not a, b being interpolated from Table II. In the first case, m is stated, in Table III., to have been determined from a; in the second from b. Sometimes m has been determined from both expressions, and a mean of the results taken, in which case m is stated, in the same Table, to have been determined from a and b. The values of m, n, and c, employed in computing the correction of the Instrument, according to the formula (2), are contained in the following Table HI. The asterisks there annexed to some of the dates denote that on those days, there being no determinations of the values of n or a, means of the preceding and subsequent values of m and n have been taken and inserted in the Table. The correction of the Instrument for the Moon has been ascertained by increasing the correction for a Star, having the same Declination as the apparent Declination of the Moon, in the proportion of the interval between the Star's transit over two Wires to the observed interval between the Moon's transit over the same Wires. The value of b is found immediately from the spirit-level. In...
Excerpt from Astronomical Observations Made at the Royal Observatory, Edinburgh, Vol. 1: From October 1834 to December 1835 The principal apartment in the Observatory is that in which the Transit Telescope and Mural Circle are placed. It is 44 feet in length from east to west; 22 feet in breadth from north to south; and 11feet in height; but over each Instrument the ridge of the sloping roof is 18 feet above the floor. The Transit Telescope occupies the eastern division of the apartment, the Mural Circle the western. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1838 edition. Excerpt: ...19 38. 22,61 19.42.41,65 19.47. 10,18 20. 35.46,27 1.0. 49,59t Correction Correction of Instrument. of Clock.-9,24-9,24-9,25-9,25-9,26-9,27-9,74-10,99-10,99-11,11-11,11-11,19-11,19-11,21-11,21-11,22-11,23-11,25-11,25-11,96-12,41-12,41-12,44-12,50-12,54-12,55-12,55-12,56-12,57-12,57-12,58-12,58-12,58-12,58-12,76-12,76-12,84-12,85-12,85-12,86-12,87-12,87-12,88-12,90-12,90-12,90-13,30-13,64-13,64-13,65-136 3.59. 4.26. 5. 4. 5. 15. 5.46. 6.23. 6.23. 6.25. 20.10. 20.13. 2.53. 3.58. 3.58. 4.26. 5. 4. 5. 6. 5.15. 6.22. 6.22. 6.25. 23.59. 14,41. 14.4715.19. 15.27 (a) Not fully illuminated. 0!,05 to be subtracted from Apparent Right Ascension observed for defect of illuminated disc.-26,10-26,20-26,22-26,95-26,95-26,95-26,96-26,96-27,87-27,87-27,87-27,87-27,88-27,88-27,89-27,90-27,91-28,29-28,40-28,40-28,49-28,55-28,57-28,59-28,59-28,65-28,65-28,65-28,66-28,66-28,67-28,68-28,68-28,68-28,68-28,68-28,98-29,06-29,08-29,10-29,18-29,18-29,20-29,21-29,22-29,23-29,23-29,23-29,74-29,74-29,86-29,93 (a) Not fully enlightened. 0,18 to be added to Apparent Right Ascension observed for defect of illuminated disc. 0.29,56 7,67 10,40 9,30 12 18 19,02 16.33,98 46.56,78 18.39,03 18.39,80 26. 12,20 35.16,92 5.31,95 5.34,97 27. 10,16 5.13,16 7.20,32 35. 24,96 37 36,22 0.30,41 5.57,50 6. 0,50 27. 11,54 5.14,44 7.21,12 16.36,16 46.59,00 20.15,85 20. 16,47 26.14,50 27.12,42 5.15,32 7.22,16 (a) Micrometer 3r,008 before and after Wire III. (b) Micrometer 3r,008 before Wire III. Correction of Instru-ment. 26.20,84 14,40 15,10 28. 28.-0,06 0,04 0,03 0,02 0,06 0,04 0,38 0,29 0,12 0,11 7,58 0,10 0,10 0,07 0,12 0,04 0,08 0,11 0,50 0,08 0,03 0,09 0,39 0,42 0,36 0,25 0,25 0,24 0,24 0,04 0,04 0,02 0,29 0,12 0,11 0,50 0,10 0,39 0,11 0,12 0,08 0,24 0,24 0,04 0,04 0,02 0,29 0,12...
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.