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Home > Art, Film & Photography > Report of the Observations of the Total Solar Eclipse, July 29, 1878, Made at Fort Worth, Texas, Ed. by L. Waldo
Report of the Observations of the Total Solar Eclipse, July 29, 1878, Made at Fort Worth, Texas, Ed. by L. Waldo

Report of the Observations of the Total Solar Eclipse, July 29, 1878, Made at Fort Worth, Texas, Ed. by L. Waldo


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About the Book

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. 1879 edition. Excerpt: ... Transit" and the chronometer, Bond, 1058, on the 15th, I began a series of observations for time, which was continued until the 31st. In the division of labor upon the day of the eclipse, the duties that fell to me were of a general nature. I was to observe the times of the several contacts, and to examine the corona with the polariscope. It seemed best, also, that some one should watch the progress of totality, and obtain a telescopic view of the corona, examine its general structure, and take note of any new or remarkable phenomena which might present themselves. This duty naturally devolved upon me, not as being best fitted by reason of previous close familiarity with the appearance of the sun under all conditions, but as the only observer who had not already assumed some special object for his attention during the eclipse. I was therefore provided with the three.inch telescope, by Secretan, with universal mounting, and a list of questions prepared by Mr. L. Trouvelot, of Cambridge, the answering of as many as possible of which was my principal aim. For observation of the first contact, I made use of a terrestrial eye.piece, magnifying 42 diameters; and for the last contact, an inverting eye.piece, magnifying 98 diameters. Both powers as well as a power of 150 were used at different times for watching the progress of the partial phases. For second contact, and during totality, an inverting eye.piece magnifying 45 diameters was used, the diameter of the field of view being about sufficient to give a clear view of all parts of the corona lying within one diameter of the sun's centre. In this eyepiece was a glass plate ruled with concentric circles, about 6' apart, whose circumferences were divided into arcs of 450 each, by lines...


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Product Details
  • ISBN-13: 9781234373115
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 24
  • Spine Width: 1 mm
  • Width: 189 mm
  • ISBN-10: 1234373114
  • Publisher Date: 22 Jan 2013
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 64 gr


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Report of the Observations of the Total Solar Eclipse, July 29, 1878, Made at Fort Worth, Texas, Ed. by L. Waldo
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