Arago telescope, Optical telescope at Paris Observatory, France
The Arago telescope features a 38-centimeter diameter lens installed in the east tower of the Paris Observatory, equipped with an equatorial mount made by Brunner.
The telescope was ordered by François Arago in 1839 from Lerebours company and took extensive development until its completion in 1857 at the Paris Observatory.
The telescope contributed to astronomical research through observations of double stars, minor planets, and photometric measurements of Jupiter's moons between 1878 and 1971.
Visitors can examine the telescope during guided tours of the Paris Observatory, where educational programs explain its role in astronomical discoveries.
The original wooden tube of the telescope was replaced with an iron structure, and the Henry Brothers installed a new objective lens in the early 1880s.
Diameter: 38 cm
Part of: Paris Observatory, PSL University
GPS coordinates: 48.83639,2.33689
Latest update: June 23, 2025 11:06
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