We present high signal-to-noise ratio integrated spectra of 24 star clusters in the Large Magellanic Cloud (LMC), obtained using the FLAIR spectrograph at the UK Schmidt telescope. The spectra have been placed on to the Lick/IDS system in order to test the calibration of Simple Stellar Population (SSP) models. We have compared the SSP-predicted

A new mid-infrared array camera has been recently put in operation with the 2.1 m telescope of the OAN at San Pedro Martir, Mexico. Calibrated 8.7, 9.8 and 12.5 micron images of a number of ultracompact HII regions and other less massive young stellar objects were obtained during the first two scientific runs with this instrument. Photometry and

Sunrise is a light-weight solar telescope with a 1 m aperture for spectro-polarimetric observations of the solar atmosphere. The telescope is planned to be operated during a series of long-duration balloon flights in order to obtain time series of spectra and images at the diffraction-limit and to study the UV spectral region down to ≅200 nm, which

We report a study of the quiet sun's magnetic field based on high-resolution infrared spectropolarimetric observations (TIP/VTT). We find that in almost 50% of the pixels Stokes V and in 15% the Stokes Q and/or U profiles have a signal above 10-3. The statistical properties of the mainly intranetwork field sampled by these observations are

The real-colour images of spiral galaxies reproduced in this Newsletter form part of a new series of such pictures, currently under construction. The original images used have all been obtained with the ING telescopes, mostly with the JKT, some with the INT, and an occasional (H-alpha) image with the WHT. For each galaxy, we have images in the B

El problema del tamaño y distribución de tamaños de los núcleos se ha estudiado en los cometas de la familia de Júpiter (FJ). Se han compilado las magnitudes nucleares publicadas de los FJ en un Catálogo, que incluye observaciones entre 1990 y 1995. Este catálogo es la primera compilación global y detallada de magnitudes nucleares de diferentes