Astronomy. Determination of Time, Longitude, Latitude, And Azimuth
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In our eReader you can find the full English version of the book. Read Astronomy. Determination of Time, Longitude, Latitude, And Azimuth Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Astronomy. Determination of Time, Longitude, Latitude, And Azimuth
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In rare cases a half set may consist of only four stars. All of these are to be time stars; that is, no azimuth stars are to be observed. For the purpose of this paragraph an azimuth star is denned as one for which the azimuth factor, A, is greater than unity. The alge- braic sum of the A factors in each half set should be kept less than unity unless it is found that to secure such a half set considerable delays would be necessary. It is desirable to have the algebraic sum of the A factors as s...mall for each half set as it is possible to make it by the use of good judgment in selecting the stars, but it is not desirable to reduce the number of stars per hour to be observed in order to improve the balancing of the A factors, if said balancing is already within the specified limit.
4. In selecting lists of stars to be observed, one should endeavor to secure the maximum number of stars per hour possible, subject to the conditions of paragraph 3 and to the necessity of securing level readings, reversing the instrument, exchanging signals, et cetera.
What to read after Astronomy. Determination of Time, Longitude, Latitude, And Azimuth?
You can find similar books in the "Read Also" column, or choose other free books by U.S. Coast And Geodetic Survey to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In rare cases a half set may consist of only four stars. All of these are to be time stars; that is, no azimuth stars are to be observed. For the purpose of this paragraph an azimuth star is denned as one for which the azimuth factor, A, is greater than unity. The alge- braic sum of the A factors in each half set should be kept less than unity unless it is found that to secure such a half set considerable delays would be necessary. It is desirable to have the algebraic sum of the A factors as s...mall for each half set as it is possible to make it by the use of good judgment in selecting the stars, but it is not desirable to reduce the number of stars per hour to be observed in order to improve the balancing of the A factors, if said balancing is already within the specified limit.
4. In selecting lists of stars to be observed, one should endeavor to secure the maximum number of stars per hour possible, subject to the conditions of paragraph 3 and to the necessity of securing level readings, reversing the instrument, exchanging signals, et cetera.
What to read after Astronomy. Determination of Time, Longitude, Latitude, And Azimuth?
You can find similar books in the "Read Also" column, or choose other free books by U.S. Coast And Geodetic Survey to read onlineMoreLess
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