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. 1886 edition. Excerpt: ...of time: this equation, applied with its proper sign to the local time, will convert it from apparent to mean, or from mean to apparent. 206. 2. To convert the mean solar time at a given meridian into the corresponding sidereal time. Let PZN be the given meridian, S the mean sun, and T the first point of aries ...
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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. 1886 edition. Excerpt: ...of time: this equation, applied with its proper sign to the local time, will convert it from apparent to mean, or from mean to apparent. 206. 2. To convert the mean solar time at a given meridian into the corresponding sidereal time. Let PZN be the given meridian, S the mean sun, and T the first point of aries. Then, NPS, the hour angle of the mean sun, reckoned westward, is the mean time; iVPT, the hour angle of T, is the sidereal time; and TPS is the right ascension of the mean sun. Hence sid. time = mean time + mean sun's right ascension... (i). Now the value of the mean sun's right ascension is registered for the instant of Greenwich mean noon, in page II. of each month in the Nautical Almanac, under the heading of "Siderea Time." This we shall denote by M0. We must, therefore, determine the Greenwich mean time corresponding to the given local time, by Art. 202, and correct the value of M0, for the change in the interval, by multiplying this interval by the factor k' of Art. 204, that is, by allowing a uniform change at the rate of 3m56"-555 in 24 hours, or 93,8565 in 1 hour. The corrected right ascension, added to the local mean time, will, according to the above formula, give the sidereal time. If M be the mean time at the given place; L west longitude of the place in time; Ma mean sun's right ascension at previous Greenwich noon, from page II. of Nautical Almanac, then M + L = mean time at Greenwich, M0 + k' (M+ L) = mean sun's right ascension; therefore, by (i), sidereal time, or S, = M + uK0 + k' (M+ L)... (ii). Ex. At Madras, in longitude 80 14' 19"-5 east, an observation is made on September 6th, 1865, at 9h 21m 12-8" mean time; find the corresponding sidereal time. h. m. 8. Mean time at Madras, September 6th 9...
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Add this copy of A Treatise on Astronomy for the Use of Colleges and to cart. $22.80, very good condition, Sold by Prominent Trading Company rated 4.0 out of 5 stars, ships from Hereford, HEREFORDSHIRE, UNITED KINGDOM, published 2012 by RareBooksClub. com.
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Add this copy of A Treatise on Astronomy (4th Edn) to cart. $24.78, good condition, Sold by Anybook rated 5.0 out of 5 stars, ships from Lincoln, UNITED KINGDOM, published 1886 by Macmillan.
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In good all round condition. Octavo, clothbound. Title, author, and publishe rin gold on spine. University College of North Wales bookplate dated 1922. Printed by W. Metcalfe and Son. W. Heffer and Sons bookseller sticker. Binding loose. Backstrip frayed at both ends and worn around edges. Corners bumped and frayed. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 700grams, ISBN:
