We describe the first instrument of a cosmic microwave background experiment for mapping cosmological structures on medium angular scales (the COSMOSOMAS experiment) and diffuse Galactic emission. The instrument is located at Teide Observatory (Tenerife) and is based on a circular scanning sky strategy. It consists of a 1-Hz spinning flat mirror

We present the results of a multi-site photometric campaign to monitor T Tauri stars in the Taurus-Auriga stellar formation region. The campaign - dubbed COYOTES, for Coordinated Observations of Young Stellar ObjecTs from Earthbound Sites - yielded UBVRI magnitudes of 13 classical T Tauri stars, 10 weak-line T Tauri stars, and one suspected Ae

OSIRIS-REx Target Asteroids! is an award-winning citizen science project conducted as part of the Communications and Public Engagement program of the NASA OSIRIS-REx asteroid sample return mission. The project furthers the study of near-Earth asteroids (NEA) and promotes interest among the amateur astronomy community. The goal of Target Asteroids

The observations of L 110, 112 and 113 were obtained with the Danish Faint Object Spectrograph and Camera (DFOSC) on the 1.54-m Danish telescope at the European Southern Observatory (ESO) on La Silla, on 1999 Nov 5, 1999 Nov 4 and 1999 Dec 29, respectively. (3 data files).

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