The 3.5-meter telescope at the Calar Alto Observatory is one of Europe’s astronomical gems, located in the Sierra de los Filabres in Almería at an altitude of 2,168 meters. With a 3.5-meter aperture, it is the largest optical-infrared telescope in continental Europe, and its Cassegrain design allows precise and efficient observations of the sky.

This telescope has played a key role in discoveries that challenge established theories, such as observing star formation in galaxies once thought to be inactive. It also hosts cutting-edge instruments like CARMENES, specialized in the search for exoplanets through precise radial velocity measurements, as well as PMAS for integral field spectroscopy and MOSCA for multi-object spectroscopy.

Its versatility allows observations in visitor mode, with the assistance of observatory staff, or in service mode, where the observatory team carries out observations according to the user’s specifications. This makes it an invaluable tool for professional astronomers and enthusiasts alike who seek to explore the mysteries of the universe.

In summary, the 3.5-meter Calar Alto telescope is a window to the cosmos, providing an advanced platform for observing and studying astronomical phenomena, and establishing itself as a key reference in international astrophysical research.