 Time, given at the end of the volume for 1871, saves the operation of reducing degrees (or hours) and minutes to seconds, and the reverse. As the PL of Diff. in the Ephemeris varies, the Greenwich time found by the methods just described may not be sufficiently...  The American Nautical Almanac - Page 2651907Full view - About this book
 | United States Naval Observatory. Nautical Almanac Office - 1870 - 566 pages
...the reverse. As the PL of Diff. in the Ephemeris varies, the Greenwich time, found by the méthode just described, may not be sufficiently exact. To correct it for such variation, or 2d difference, take the différence between the PL of Diff. used and the one which follows it in the... | |
 | United States Naval Observatory. Nautical Almanac Office - 1871 - 552 pages
...hours) and minutes to seconds, and the reverse. As the P. Ij. of Diff. in the Ephemeris varies, tho Greenwich time, found by the methods just described,...sufficiently exact. To correct it for such variation, or 2d difference, take the difference between the PL of Diff . used and the one which follows it in the... | |
 | United States Naval Observatory. Nautical Almanac Office - 1872 - 558 pages
...the methods just described, may not be sufficiently exact. To correct it for such variation, or 2d difference, take the difference between the P. L. of Diff. used and the one which follow« it in the Ephemcris, (or, more strictly, half the difference of the preceding and following... | |
 | United States Naval Observatory. Nautical Almanac Office - 1876 - 552 pages
...reverse. As the P. L. of Diff. in the Ephemeris varies, the Greenwich time, found by the methods jnst described, may not be sufficiently exact. To correct it for such variation, or 2d difference, take the difference between the P. L. of Diff. used and the one which follows it in... | |
 | 1883 - 558 pages
...the Ephemeris varies, the Greenwich time found by the method., just described may not he sufh'ciently exact. To correct it for such variation, or second...of Diff. used and the one which follows it in the Kphemcris. (or, more strictly, half the difference of the preceding and following ones). With this... | |
 | United States. Congress. House - 1885 - 558 pages
...degrees (or hours) and minutes to seconds, and the reverse. As the PL of Diff. in the Ephemoris varies, the Greenwich time found by the methods just described...of Diff. used and the one which follows it in the Ephemeris, (or, more strictly, half the difference of the preceding and following ones). With this... | |
 | United States Naval Observatory. Nautical Almanac Office - 1885 - 560 pages
...and the reverse. As the PL of Diff. in the Ephemeris varies, the Greenwich time found by the method« just described may not be sufficiently exact. To correct...it for such variation, or second difference, take tlie difference between the PL of Diff. used and the one which follows it in the Ephemeris, (or, more... | |
 | 1886 - 552 pages
...reverse. As the PL of Diff. in the Ephemeris varies, the Greenwich time found by the method« jiint described may not be sufficiently exact. To correct...of Diff. used and the one which follows it in the Ephemeris. (or, more strictly, half the difference of the preceding and following ones). With this... | |
 | United States Naval Observatory. Nautical Almanac Office - 1887 - 556 pages
...degrees (or hours) and minutes to seconds, and the reverse. As the PL of Diff. in the Ephemeris varies, the Greenwich time found by the methods just described...of Diff. used and the one which follows it in the Ephemeris, (or, more strictly, half the difference of the preceding and following ones). With this... | |
 | Nathaniel Bowditch - 1888 - 704 pages
...from the hours of Greenwich time when the later Almanac distance is used. To correct for second Diff., take the difference between the PL of Diff. used and the one which follows it in the Almanac. With this difference and the first correction of the Greenwich time already found enter Table 35 (or... | |
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