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...

In this paper we are exploring the possibilities of 3D printing in the fabrication of mirrors for astronomy. Taking the advantages of 3D printing to solve the...

Due to the complexity of scientific instruments, such as spectropolarimeters, managing instrument sequences can be challenging. To address this problem, a...

It is shown that, given suitable radial velocity values for the stars and the local interstellar medium (LISM) interstellar absorption can be distinguished from...

The main goal of this work is the analysis of new approaches in order to study the properties of astronomical sites. The objective is to calibrate the...

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The authors have shown how two extensive stellar spectral libraries of very high quality obtained with telescopes of small size can help us in determining the...

Osawa 2-21-1, Mitaka, Tokyo 181-8588, Japan It is reported the results of an observational run carried out with the JKT telescope of 1m at La Palma Observatory...

Detailed imaging and spectroscopic analysis of the centers of nearby S0 and spiral galaxies shows the existence of ``composite bulges'', where both classical...