Yebes Observatory (Spanish: ''Centro Astronómico de Yebes (CAY)'') is an astronomical observatory located at

Yebes Yebes is a municipality located in the Guadalajara (province), province of Guadalajara, Castilla–La Mancha, Spain. According to the 2004 census (Instituto Nacional de Estadística (Spain), INE), the municipality had a population of 235 inhabit ...

, Castilla-La Mancha, Spain. Yebes Observatory is the main scientific and technical facility of the National Geographic Institute of Spain. The facilities include two

radio telescope A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. Radio telescopes are the main observing instrument used in radio astronomy, which studies the radio frequency ...

s, a solar tower, an

astrograph An astrograph (or astrographic camera) is a telescope designed for the sole purpose of astrophotography. Astrographs are mostly used in wide-field astronomical surveys of the sky and for detection of objects such as asteroids, meteors, a ...

and a

Gravimeter Gravimetry is the measurement of the strength of a gravitational field. Gravimetry may be used when either the magnitude of a gravitational field or the properties of matter responsible for its creation are of interest. Units of measurement Gr ...

. The most powerful telescope is the RT40 m telescope.

References

{{reflist category:Astronomical observatories in Spain Buildings and structures in the Province of Guadalajara