All this study had made Miss Mitchell a superior woman. It was not strange, therefore, that fame should come to her. One autumn night, October, 1847, she was gazing through the telescope, as usual, when, lo! she was startled to perceive an unknown comet. She at once told her father, who thus wrote to Professor William C. Bond, director of the Observatory at Cambridge: --
MY DEAR FRIEND,--I write now merely to say that Maria discovered a telescopic comet at half-past ten on the evening of the first instant, at that hour nearly above Polaris five degrees. Last evening it had advanced westerly; this evening still further, and nearing the pole. It does not bear illumination. Maria has obtained its right ascension and declination, and will not suffer me to announce it. Pray tell me whether it is one of Georgi's, and whether it has been seen by anybody. Maria supposes it may be an old story. If quite convenient, just drop a line to her; it will oblige me much. I expect to leave home in a day or two, and shall be in Boston next week, and I would like to have her hear from you before I can meet you. I hope it will not give thee much trouble amidst thy close engagements. Our regards are to all of you most truly.
WILLIAM MITCHELL.
The answer showed that Miss Mitchell had indeed made a new discovery. Frederick VI., King of Denmark, had, sixteen years before, offered a gold medal of the value of twenty ducats to whoever should discover a telescopic comet. That no mistake might be made as to the real discoverer, the condition was made that word be sent at once to the Astronomer Royal of England. This the Mitchells had not done, on account of their isolated position. Hon. Edward Everett, then President of Harvard College, wrote to the American Minister at the Danish Court, who in turn presented the evidence to the King. "It would gratify me," said Mr. Mitchell, "that this generous monarch should know that there is a love of science even in this, to him, remote corner of the earth."
The medal was at last awarded, and the woman astronomer of Nantucket found herself in the scientific journals and in the press as the discoverer of "Miss Mitchell's Comet." Another had been added to the list of Mary Somervilles and Caroline Herschels. Perhaps there was additional zest now in the mathematical work in the Coast Survey. She also assisted in compiling the American Nautical Almanac, and wrote for the scientific periodicals. Did she break down from her unusual brain work? Oh, no! Probably astronomical work was not nearly so hard as her mother's,--the care of a house and ten children!
For ten years more Miss Mitchell worked in the library, and in studying the heavens. But she had longed to see the observatories of Europe, and the great minds outside their quiet island. Therefore, in 1857, she visited England, and was at once welcomed to the most learned circles. Brains always find open doors. Had she been rich or beautiful simply, Sir John Herschel, and Lady Herschell as well, would not have reached out both hands, and said, "You are always welcome at this house," and given her some of his own calculations? and some of his Aunt Caroline's writing. Had she been rich or handsome simply, Alexander Von Humboldt would not have taken her to his home, and, seating himself beside her on the sofa, talked, as she says, "on all manner of subjects, and on all varieties of people. He spoke of Kansas, India, China, observatories; of Bache, Maury, Gould, Ticknor, Buchanan, Jefferson, Hamilton, Brunow, Peters, Encke, Airy, Leverrier, Mrs. Somerville, and a host of others."
What, if he had said these things to some women who go abroad! It is safe for women who travel to read widely, for ignorance is quickly detected. Miss Mitchell said of Humboldt: "He is handsome--his hair is thin and white, his eyes very blue. He is a little deaf, and so is Mrs. Somerville. He asked me what instruments I had, and what I was doing; and when I told him that I was interested in the variable stars, he said I must go to Bonn and see Agelander."
There was no end of courtesies to the scholarly woman. Professor Adams, of Cambridge, who, with his charming wife, years afterward helped to make our own visit to the University a delight, showed her the spot on which he made his computations for Neptune, which he discovered at the same time as Leverrier. Sir George Airy, the Astronomer Royal of England, wrote to Leverrier in Paris to announce her coming. When they met, she said, "His English was worse than my French."
Later she visited Florence, where she met, several times, Mrs. Somerville, who, she says, "talks with all the readiness and clearness of a man," and is still "very gentle and womanly, without the least pretence or the least coldness." She gave Miss Mitchell two of her books, and desired a photographed star sent to Florence. "She had never heard of its being done, and saw at once the importance of such a step." She said with her Scotch accent, "Miss Mitchell, ye have done yeself great credit."
In Rome she saw much of the Hawthornes, of Miss Bremer, who was visiting there, and of the artists. From here she went to Venice, Vienna, and Berlin, where she met Encke, the astronomer, who took her to see the wedding presents of the Princess Royal.
Mrs. Julia Ward Howe, in an admirable sketch of Miss Mitchell, tells how the practical woman, with her love of republican institutions, was impressed. "The presents were in two rooms," says Miss Mitchell, "ticketed and numbered, and a catalogue of them sold. All the manufacturing companies availed themselves of the opportunity to advertise their commodities, I suppose, as she had presents of all kinds. What she will do with sixty albums I can't see, but I can understand the use of two clothes-lines, because she can lend one to her mother, who must have a large Monday's wash!"