Bessel definition

  • others:
    • Bessel, Friedrich Wilhelm 1784-1846. Prussian astronomer just who recalculated the orbit of Halley's comet (1804), verified by parallax the exact distance from Earth towards double celebrity 61 Cygni (1838), and developed a class of mathematical functions predicated on their research of planetary perturbation.
  • noun:
    • German mathematician and astronomer whom made precise measurements of stellar distances and whom predicted the existence on an 8th world (1784-1846)

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