eorge the Third, in about the year Seventeen Hundred Eighty-two, had invited his distinguished Hanoverian countryman to become an attache of the Court with the title of "Astronomer to the King." The Astronomer-Royal, in charge of the Greenwich Observatory, was one Doctor Maskelyne, a man of much learning, a stickler for the fact, but with a mustard-seed imagination. Being asked his opinion of Herschel he assured the company thus: "Herschel is a great musician—a great musician!" Afterwards Maskelyne explained that the reason Herschel saw more than other astronomers was because he had made himself a better telescope.
One real secret of Herschel's influence seems to have been his fine enthusiasm. He worked with such vim, such animation, that he radiated light on every side. He set others to work, and his love for astronomy as a science created a demand for telescopes, which he himself had to supply. It does not seem that he cared especially for money—all he made he spent for new apparatus. He had a force of about a dozen men making telescopes. He worked with them in blouse and overalls, and not one of his workmen excelled him as a machinist. The King bought several of his telescopes for from one hundred to three hundred pounds each, and presented them to universities and learned societies throughout the world. One fine telescope was presented to the University of Gottingen, and Herschel was sent in person to present it. He was received with the greatest honors, and scientists and musicians vied with one another to do him homage.
In Seventeen Hundred Eighty-two Herschel and his sister gave up their musical work and moved from Bath to quarters provided for them near Windsor Castle. Herschel's salary was then the modest sum of two hundred pounds a year.
Caroline was honored with the title "Assistant to the King's Astronomer" with the stipend of fifty pounds a year. It will thus be seen that the kingly idea of astronomy had not traveled far from what it was when every really respectable court had a retinue of singers, musicians, clowns, dancers, palmists and scientists to amuse the people somewhat ironically called "nobility." King George the Third paid his Cook, Master of the Kennels, Chaplain and Astronomer the same amount. The father of Richard Brinsley Sheridan was "Elocutionist to the King," and was paid a like sum.
When Doctor Watson heard that Herschel was about to leave Bath he wrote, "Never bought King honor so cheap."
It was nominated in the bond that Herschel should act as "Guide to the heavens for the diversification of visitors whenever His Majesty wills it."
But it was also provided that the astronomer should be allowed to carry on the business of making and selling his telescopes.
Herschel's enthusiasm for his beloved science never abated. But often his imagination outran his facts.
Great minds divine the thing first—they see it with their inward eye. Yet there may be danger in this, for in one's anxiety to prove what he first only imagined, small proof suffices. Thus Herschel was for many years sure that the moon had an atmosphere and was inhabited; he thought that he had seen clear through the Milky Way and discovered empty space beyond; he calculated distances, and announced how far Castor was from Pollux; he even made a guess as to how long it took for a gaseous nebula to resolve itself into a planetary system; he believed the sun was a molten mass of fire—a thing that many believed until they saw the incandescent electric lamp—and in various other ways made daring prophecies which science has not only failed to corroborate, but which we now know to be errors.