page_title: Raymond Augustin Mailhat
section_title: Notable Mailhat instruments
hierarchical_section_title: Raymond Augustin Mailhat / Notable Mailhat instruments
caption_attribution_description: Español: Telescopio ecuatorial Mailhat del Observatorio San José
context_page_description: Raymond Augustin Jean-Baptiste Mailhat was a French manufacturer of telescopes and precision optical instruments.
context_section_description: Equatorial refractor of 190 mm diameter in the second astronomical dome of the Observatory of the Société Astronomique de France at its former headquarters on rue Serpente in Paris. Mailhat’s telescope was exclusively reserved for scientific research.
  Astro-photographic double equatorial refractor of 380 mm diameter at the Fabra Observatory in Barcelona. This telescope was used by Josep Comas i Solà to observe the moons of Mars, Deimos and Phobos, in 1909, and to photograph Halley’s comet in 1910.
  Meridian circle at the Rouen Popular Observatory.
  Astro-photographic equatorial mount refractors constructed for the Ebro Observatory in Tortosa, Spain and the Puebla Observatory.
  Astro-photographic double equatorial refractor of 127mm diameter at the San José Observatory in Buenos Aires, Argentina.
  Equatorial refractor of 325 mm diameter and 6 m focal length at the Lille Observatory.
caption: Mailhat equatorial refractor telescope in San José Observatory, Buenos Aires
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