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Astronomical objects discovered in 1789

  • MimasWilliam Herschel recorded a new celestial body on the 17th of September 1789 using his massive 40-foot telescope. The instrument featured a metal mirror with…
  • EnceladusOn the 28th of August 1789, William Herschel spotted a faint dot of light while using his new forty-foot telescope at Observatory House in Slough.