OSIRIS (Optical System for Imaging and Low-Resolution Integrated Spectroscopy) is an instrument designed to obtain images and low-resolution spectra of astronomical objects in the optical domain (from 365-1000 nm). It will be installed on Day One (2004) in the Nasmyth focus of the 10-m Spanish GTC Telescope. The mosaic is composed of two abuttable

Wide field B,V photometry of the outer regions of the Carina dwarf spheroidal galaxy is presented. Six fields were observed to a distance from the centre up to 4.5 degrees. We detected a sizable sample of faint blue objects, with V> 23 and B-V 0.4. These objects populate the same region of the color magnitude diagram of the Carina old Main Sequence

Even from a light-polluted city it is possible to observe Near Earth Asteroids (NEAs) at opposition using a small telescope equipped with a CCD camera. In this paper, we review the major NEA programs and present the planning of the follow-up observations using a small facility. In a second paper we will present the first results of a program run at

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We present near-infrared (JKs) time series data of the Large Magellanic Cloud (LMC) cluster Reticulum. The observing strategy and data reduction (DAOPHOTII/ALLFRAME) allowed us to reach a photometry accuracy of the order of 0.02 mag at limiting magnitudes typical of RR Lyrae stars. We are interested in Reticulum, since it hosts a sizable sample of

Visible and near-infrared spectra (0.5-2.4 μm) of TNOs (50000) Quaoar and 2002 TX300 taken with the Italian 3,56m "Telescopio Nazionale Galileo" are presented and analyzed in the framework of the simple one-dimensional geometrical-optics formulation by Shkuratov et al. (1999, Icarus 137, 235). The detection of deep absorption bands in the near