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Updated: May 25, 2025
M. Sinclair, by indicating the values of these variables through curves and laying down one set of curves over another. Later my friend, Mr. H. L. Gantt, after devoting about 1 1/2 years exclusively to this work, obtained a much more rapid and simple solution. It was not, however, until 1900, in the works of the Bethlehem Steel Company, that Mr. Carl G. Barth, with the assistance of Mr.
Among eclipsing stars should probably be reckoned the peculiar variables, Beta Lyræ and V Puppis, each believed to consist of a pair of bright stars revolving almost in contact.
Three stars, on the other hand, distinguished by rapid and regular fluctuations, have been proved by Bélopolsky to be attended by non-occulting satellites, which circulate, nevertheless, in the identical periods of light-change. Gore's "Catalogue of Known Variables" included, in 1884, 190 entries, and the number was augmented to 243 on its revision in 1888.
And even then, our objective, l28 degrees west longitude, was five degrees north of the Line, while Nuka-hiva, in the Marquesas, lay nine degrees south of the Line and twelve degrees to the west! There remained only one thing to do to work south out of the trade and into the variables.
But as these Variables blow generally from the southward and westward, from a cause afterwards to be explained, it is obvious enough why this part of the homeward voyage is always more easily made than the outward passage.
They sound so simple that they would appear to call for merely the trained judgment of any good mechanic. In fact, however, after working 26 years, it has been found that the answer in every case involves the solution of an intricate mathematical problem, in which the effect of twelve independent variables must be determined.
Bailey's observations show that variable stars sometimes exist in large numbers in clusters, although the variables thus observed are of short period. The cluster 4183, just west of Antares, is also worth a glance with the five-inch glass. It is dense, but its stars are very small, so that to enjoy its beauty we should have to employ a large telescope.
There are many types, and the explanations of others have not proved so easy. The Harvard College photographs have disclosed the very great prevalence of variability, and this is certainly one of the lines in which modern discovery must progress. Roberts, in South Africa, has done splendid work on the periods of variables of the Algol type. New Stars.
Every large assembly is, moreover, a fluctuating body; it is not one house, so to say, but a set of houses; it is one set of men to-night and another to-morrow night. A certain unity is doubtless preserved by the duty which the executive is supposed to undertake, and does undertake, of keeping a house; a constant element is so provided about which all sorts of variables accumulate and pass away.
When we had worried along our easting to 126 degrees west longitude, we left the variables and headed south through the doldrums, where was much calm weather and where, taking advantage of every fan of air, we were often glad to make a score of miles in as many hours. And yet, on such a day, we might pass through a dozen squalls and be surrounded by dozens more.
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