Excerpt from Report on the Preparations For, and Observations Of, the Transit of Venus: As Seen at Roorkee and Lahore on December 8, 1874
It will be seen that I have departed in one point from sir george airy's instructions. I have left all the equations with seconds of space' as a unit, instead of taking the last step, and making the unit a second of observed time. In all the calculations connected with the observations near contact, I have felt that except in the contacts themselves, the pro bable error of observed time was of no importance, and that that of space alone affected the result in the case of the alt-azimuth Observations of course it was the errors in space which were sought. Though I had at one time intended also exhibiting these results here as proposed b sir G. Airy, I have finally left them, for uniformity, as they stand in my papers.
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Seller: Forgotten Books, London, United Kingdom
Paperback. Condition: New. Print on Demand. This early 20th century publication reports on the author's observations during the 1874 Transit of Venus, a rare astronomical event. The book includes detailed discussions on time determination, observational techniques, and the instruments used during the observation. The author also includes their own measurements and calculations, comparing them with data collected from other observation stations, such as the expedition at Mussooree. As part of the historical record of worldwide observations of the event, the book provides insights on the complex scientific discussions on calibrating longitude and measuring the celestial distances of the period. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781334033780_0
Quantity: Over 20 available
Seller: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781334033780
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781334033780
Quantity: 15 available