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Those who, after all, may not care to consult the ephemeris in order to find the planets, may be able to locate them, simply from a knowledge of their situation among the constellations. Some ordinary almanacs tell in what constellations the principal planets are to be found at various times of the year.
On one thing, however, we can decide; life itself is encompassed with gloom; sorrow and anxiety await even those upon whom the stars shed their most golden influence. We know not one day what the next shall bring! no; I repeat it; no in spite of your scheme, and your ephemeris, and your election of happy moments.
Several trials of the method were made by accomplished gentlemen who considered that nothing was wanting to make it practical at sea but a Nautical Ephemeris. The tables of the moon, necessary for the purpose, were prepared by Tobias Mayer, of Gottingen, and the regular annual issue of the work was commenced in 1766, as already stated.
He will find the foreign ephemerides using uniform data worked out in the office of the "American Ephemeris and Nautical Almanac" at Washington for the years beginning with 1901. He will find that these same data, after being partially adopted in the ephemeris for 1900, were thrown out in 1901, and the antiquated ones reintroduced in the main body of the ephemeris.
In the writing-office of the Ephemeris, which would be given to the public the first thing in the morning, five hundred slaves or more were occupied in writing from dictation a list of the owners of the horses, of the 'agitatores' who would drive them, and of the prizes offered to the winners, whether Christians or heathen.
The men who have done it are therefore in intellect the select few of the human race, an aristocracy ranking above all others in the scale of being. The astronomical ephemeris is the last practical outcome of their productive genius. On the question whether the world generally reasoned in this way, I do not remember having any distinct idea.
His daughter, Susanna, the wife of Jacob Bartsch, a physician who had helped Kepler with his Ephemeris, lost her husband soon after her father's death, and succeeded in obtaining part of Kepler's arrears of salary by threatening to keep Tycho's manuscripts, but her stepmother was left almost penniless with five young children.
Another part of the ephemeris gives the position of the heavenly bodies, not at equidistant intervals, but at transit over some meridian. For this purpose the meridian of Washington is chosen for obvious reasons.
The places of Uranus and Neptune are derived from new tables which will probably be sufficiently accurate for some time to come. For the moon, Pierce's tables have been employed up to the year 1882 inclusive. Commencing with the ephemeris for the year 1883, Hansen's tables are introduced with corrections to the mean longitude founded on two centuries of observation.
He handed the volume to Jason, using both hands since it was very thick, metal bound and heavy. "Now listen closely and try and understand, even if it is difficult for you," Jason said, opening the book. Mikah smiled wryly at this assumption of his ignorance. "This is a stellar ephemeris, just as packed with facts as an egg is with meat. In some ways it is a history of mankind.
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