Herschel's first profession was composing and performing music, with astronomy being his hobby. He is known for the twenty-four symphonies that he composed. Astronomy was his hobby and passion. He built his own telescopes of superb quality. After becoming known, he earned substantial income by building telescopes for others. Eventually, astronomy and science became his primary work after he was appointed as the King's astronomer by King George the Third, who provided Herschel with a residence, a salary, and funds for construction of great telescopes.
(https://en.wikipedia.org/wiki/William_Herschel)
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