We present results from multi-wavelength observations of the Wolf-Rayet (WR) blue compact dwarf galaxy He 2-10. These observations include Hα and optical red continuum imaging, high resolution Hα spectroscopy, high resolution radio-continuum mapping at 4.80 and 8.64 GHz and ROSAT X-ray observations. The deep Hα images reveal that the galaxy is

HII region catalogues for 57 face on spiral galaxies within v

MOTIVATION FOR THIS MONITORING To better understand the origin, nature and evolution of the Kuiper Belt Objects (hereafter KBOs) it is needed a characterization of the physical properties of these primitive bodies. We expect that these remote and pristine bodies are rich in ice and other volatiles. They also probably played an important role in the

We report intermediate resolution spectroscopy (50 km/s) of the magnetic Cataclysmic Variable AE Aqr performed as part of the World Astronomy Days (WAD) campaign. Our analysis of the absorption features supports a K4 classification for the companion star, which contributes more than 95% of the total flux in the range 600-700 nm. We find that the

Context: Over the past years, the λ-Orionis cluster has been a prime location for the study of young very low mass stars, substellar and isolated planetary mass objects and the determination of the initial mass function and other properties of low mass cluster members. Aims: In the continuity of our previous studies of young associations cores, we

Context. Gamma-ray bursts (GRBs) can provide information about star formation at high redshifts. Even in the absence of a bright optical/near-infrared/radio afterglow, the high detection rate of X-ray afterglows by Swift/XRT and its localization precision of 2-3 arcsec facilitates the identification and the study of GRB host galaxies. Aims: We