Atmospheric extinction evaluates the sky transparency. Besides the natural extinction due to the molecules of the atmosphere, other sources of sky transparency...
PublishingPARALAJES Lights of the Universe
In 2015 we celebrated the International Year of Light, which is the "messenger" of astrophysical phenomena, and it was also the 30th anniversary of the official...
PublicationSite properties of the Canarian observatories. Proceedings. Workshop on Site Properties of the Canarian Observatories, La Palma (Spain), 29 - 30 Oct 1997.
The following topics were dealt with: atmospheric optics, image quality, the Gran Telescopio Canarias project, site testing, meteorological effects, the Galileo...
PublicationSurvey Operations for the Dark Energy Spectroscopic Instrument
The Dark Energy Spectroscopic Instrument (DESI) survey is a spectroscopic survey of tens of millions of galaxies at 0 < z < 3.5 covering 14,000 sq. deg. of the...
NewsThe president of the Italian National Astrophysics Institute visits the IAC
These two research centres agree to start negotiations for the installation of Cherenkov telescopes at the Teide Observatory.
In this summary, a brief review is given of the main results presented during the workshop on astronomical site evaluation of San Pedro Mártir in Northern Baja...
PublicationWorld atlas of large optical telescopes
By 1980 there will be approximately 100 large optical telescopes in the world with mirror or lens diameters of one meter (39 inches) and larger. This atlas...