Meudon Observatory

Meudon Observatory

Meudon Observatory is the French Observatory of Physical Astronomy, located near Paris. Its principal instrument is a 32.7-inch refractor which has a 24.4-inch photographic refractor coupled to it on the same mounting.


Established in the late 19th century and initially known as the Paris Observatory, the facility was moved to Meudon in 1875. The new location provided astronomers with better viewing conditions, as the observatory was now situated on a hilltop, away from city lights and pollution. Today, Meudon Observatory is part of the Paris Observatory system.


One of the most notable achievements of Meudon Observatory was the discovery of the Sun's magnetic field. In the early 20th century, French astronomer Henri Deslandres led a team of researchers who used spectroscopy to study the Sun's chromosphere. This breakthrough allowed them to observe the Sun's magnetic field and helped to advance our understanding of solar physics. Meudon Observatory has also been instrumental in the development of astronomical technology. In the early 20th century, the observatory was home to the largest telescope in the world, with a diameter of 83 centimeters. This telescope was used to study the planets, stars, and other celestial objects, and helped to pave the way for modern astronomical research.


Today, Meudon Observatory continues to be a hub for astronomical research and discovery. The facility is home to several telescopes and other instruments, including the Solar Magnetic Field Telescope and the Solar Tower Telescope. These instruments allow researchers to study the sun and other celestial objects in greater detail, and have led to numerous discoveries and breakthroughs in the field of astronomy. In addition to its research activities, Meudon Observatory also plays an important role in education and public outreach. The facility offers tours and educational programs for students and the general public, and hosts various events and lectures throughout the year. This outreach helps to promote interest in astronomy and science, and encourages the next generation of scientists and researchers.