ISBN: 1130867498

[EAN: 9781130867497], Neubuch, OXFORD. RADCLIFFE OBSERVATORY,SUBJECTS, This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers c… Mehr…

[EAN: 9781130867497], Neubuch, OXFORD. RADCLIFFE OBSERVATORY,SUBJECTS, This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1875 Excerpt: . . . give six separate measures of distance, which are set down in the sixth column of the printed observations. Occasionally, when the components are too far apart to admit of the application of the method of equal distances, their separate images are brought into coincidence, and the process is then in every other respect similarto that explained above. The value in arc of one division of the scale which has been used in the reduction of the observations, namely 3o-424, is the same as that used in preceding years, its correctness having been tested by observations made in the years 1865 and 1867. For obtaining the reading for the 2ero of the position-circle, the micrometer eye-piece previously alluded to, which has one transitwire, one fixed declination-wire, and one wire moveable by the micrometer-screw, was used. A suitable star being chosen, it was kept fixed in the field by means of the driving-clock, and the images were separated by a certain interval, by giving motion to the half-objectglass E, ordinarily used as the moveable segment; and the micrometer eye-piece was turned till the two images were correctly bisected by one of the wires. The images were then allowed to pass across the field by the diurnal motion, and the whole telescope-tube was turned round BADCLIFFE OBSERVATIONS, 182. i by means of the attached handles till the images ran well along the wire. The vernier H of the position-circle was then read. The moveable image was afterwards placed at an equal distance on the other side of the fixed image, the operation was repeated, and the vernier was read again. The mean of the two readings was taken as the equatorial point; and this, diminished by 2700 or by 90, is the polar point. The following is the only result for 2ero of pos. . . This item ships from La Vergne,TN.<

ISBN: 9781130867497

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have oc… Mehr…

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. Books, , Astronomical-and-Meteorological-Observations-Made-at-the-Radcliffe-Observatory-Oxford~~Oxford-Radcliffe-Observatory, 999999999, Astronomical and Meteorological Observations Made at the Radcliffe Observatory, Oxford, Oxford Radcliffe Observatory, 1130867498, General Books LLC, , , , , General Books LLC<

ISBN: 9781130867497

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