F

David Fabricius (1564-1617)
  • Born in Germany.
  • He discovered the first variable star -- Mira, in the constellation of Cetus.

Johannes Fabricius (1587-1615)

  • Born in Germany.
  • He discovered the Sun's spots and its revolution.

John Flamsteed (1646-1719)

  • Born in England.
  • He worked on a star catalogue which was completed by others, the editor being Edmond Halley.

Joseph Fraunhafer (1787-1826)

  • Born in Germany.
  • He made the best refracting lenses of his day.
  • He conducted studies in spectoscopy.
  • The dark lines that he found in the band of light that has passed through a prism are named after him.