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Herschel threw out the hint that the great cluster in Hercules might prove to be the supreme seat of attractive force; Argelander placed his central body in the constellation Perseus; Fomalhaut, the brilliant of the Southern Fish, was set in the post of honour by Boguslawski of Breslau.
He urged me to go to see Argelander on my way to London; he followed me out, still urging me to do this, and at the same time assured me that Kansas would go all right. "It was singular that Humboldt should advise me to use the sextant; it was the first instrument that I ever used, and it is a very difficult one.
PARROT. An irregularly-shaped formation, 41 miles in diameter, S. of Albategnius, with a very discontinuous margin, interrupted on every side by gaps and depressions, large and small; the most considerable of which is the regular ring-plain Parrot a, on the E. An especially fine valley, shown by Schmidt to consist in part of large inosculating craters, cuts through the wall on the S.W., and runs on the E. side of Argelander towards Airy.
Being fond of astronomy, he was struck with the backward condition of that science in our country. He resolved to devote his life to building up the science in America. He went to Germany, then the only country in which astronomy was pursued in its most advanced form, studied under Gauss and Argelander, and took his degree at Göttingen in 1848.
Gould, who had recently returned from long years in South America; of the Washington Observatory and its director, Lieutenant Maury; of the Dudley Observatory, at Albany; of Sir George Airy, of the Greenwich Observatory; of Professor Enke's comet reputation; of Argelander, who was there observing variable stars; of Mrs. Somerville and Goldschmidt, and of his brother.
It is only necessary to lay down the position of each star with sufficient exactness to distinguish it from all its neighbors. About 400,000 stars were during the last half-century listed in this way at the observatory of Bonn by Argelander, Schonfeld, and their assistants.
Then Piazzi, Lalande, Groombridge, and Bessel were followed by Argelander with his 324,000 stars, Rumker's Paramatta catalogue of the southern hemisphere, and the frequent catalogues of national observatories. Later the Astronomische Gesellschaft started their great catalogue, the combined work of many observatories. Other southern ones were Gould's at Cordova and Stone's at the Cape.
But Heis, who saw more naked-eye stars than Argelander, makes Ursa Major precisely equal to Hercules in the number of stars, his enumeration showing two hundred and twenty-seven in each constellation, while, according to him, Draco follows very closely after, with two hundred and twenty stars.
Indeed, the actual number that might have been seen with it is considerably greater, for when the astronomer Argelander made this memorable investigation he was unable to reckon many of the stars in localities where they lay very close together.
As Hansen was Germany's greatest master in mathematical astronomy, so was the venerable Argelander in the observational side of the science. He was of the same age as the newly crowned Emperor, and the two were playmates at the time Germany was being overrun by the armies of Napoleon.
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