Very Good: a copy that has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. Most items will be dispatched the same or the next working day. N° de ref. de la librería
Reseña del editor: 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. 1890 Excerpt: ...Nairne jndged the internal contact, and thought the thread of light just ready to be formed, but did not see it completed, at 12h 15' 48", or 7h 29' 2oJ" apparent time. During these observations the air was very clear, with a west wind, and the Sun very distinct for the altitnde. A little after the internal contact 1 measured Venus's horizontal diameter with the achromatic object glass micrometer, applied to the 2-foot reflecting telescope, and found it to be 55$", by a mean of 8 observations, the extremes differing 4" from cue another, Venus at the same time ill-defined, and her circumference undulating very much. These observations belong to 1761, having been accidentally misplaced. % LONDON (MIDDLE TEMPLE). Philosophical Transactions, 1769, p. 171. Observer, J. Horsfall.--At 7h 26' 34" be saw a lambent light whirl around the opaque limb of the planet, the Sun being at the time only one-fourth of a degree above the top of the chimney. LONDON (SPITAL SQUARE). Philosophical Transactions, 1769, p. 192. Observer, John Canton, M. A., F. E. S.--About half a minute before the total ingress, when the bright cusps of the Sun were at some distance from each other, there appeared a faint light between them, a little lower than the cusps or nearer to the center of the planet. This I observed to increase till the time of the internal contact, which fully convinced me that there is an atmosphere about Venus. h.'" First external contact at 7 8 28 mean time. First internal contact at 7 26 59"" Duration of the ingress 18 31 The observations are expressed by Canton in Greenwich mean time. The conditions would seem to have been favorable and the time well determined. There is no certain statement of the phase observed; but from the gr...
Título: Discussion of observations of the transits ...
Año de publicación: 2012
Condición del libro: Very Good
Descripción 2018. Full Leather Bound. Condición: New. Antique look with Golden Leaf Printing and embossing with round Spine completely handmade binding(extra customization on request like Color Leather, Colored book, special gold leaf printing etc.) Reprinted in 2018 with the help of original edition published long back . This book is printed in black & white, sewing binding for longer life, Printed on high quality Paper, re-sized as per Current standards, professionally processed without changing its contents. As these are old books, we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure in old look so we brought it back to the shelves. Hope you will like it and give your comments and suggestions. Lang: - eng, Vol: - Volume v.2, pt.5, Print on Demand. EXTRA 10 DAYS APART FROM THE NORMAL SHIPPING PERIOD WILL BE REQUIRED. Normal Hardbound Edition is also available on request. Volume v.2, pt.5 Language: eng. Nº de ref. del artículo: SD00004513088