STELLA is a robotic observatory with two fully automatic telescopes (STELLA-I and STELLA-II) located at the Teide Observatory in Tenerife, Spain. Not only the...

The site of the solar spectrometer of the International Research on the Interior of the Sun (IRIS) network, installed in December 1989 in the Teide Observatory...

The Kepler and TESS missions have demonstrated that planets are ubiquitous. However, the success of these missions heavily depends on ground-based radial...

Context. The response of imaging atmospheric Cherenkov telescopes to incident γ-ray-initiated showers in the atmosphere changes as the telescopes age due to...

Imaging of the solar surface from ground based telescopes has achieved to be diffraction limited almost ten years ago, while diffraction-limited...

The preliminary results of time-resolved spectroscopy of the He White Dwarf system AM CVn are presented. Spectral variations at different photometric periods...

The GTC project office is continuing to develop the plans for the commissioning of the GTC. The commissioning will start before first light, and will continue...

This atlas shows the locations of and gives information about optical telescopes used for astronomical research in the United States as of late 1986. Those...

This paper presents near-infrared monitoring, taken with the 1.5 m Carlos Sanchez Telescope in Tenerife and CCD photometry taken with the Jacobus Kapteyn...