Context. HBC 722 (V2493 Cyg) is a young eruptive star in outburst since 2010. Spectroscopic evidence suggests that the source is an FU Orionis-type object, with an atypically low outburst luminosity. Aims: Because it was well characterized in the pre-outburst phase, HBC 722 is one of the few FUors from which we can learn about the physical changes

We aim to detect and identify the faint X-ray sources belonging to Galactic globular clusters in order to understand their role in the evolution of globular clusters. We present a new Chandra X-ray observation of the Galactic globular cluster NGC 2808. Previous observations with XMM-Newton and ultraviolet observations with the Hubble Space

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Near-Earth asteroid (4015) Wilson-Harrington is particularly interesting for a number of reasons. It has displayed cometary activity, hence its designation as comet 107P, and since Wilson-Harrington likely originated in the main asteroid belt (Bottke at al. 2002a), it could also be called a Main-belt Comet. This object has been linked to fireballs

The EURONEAR_Release1 catalog contains 1544 positions of 155 Near-Earth Asteroids, obtained between 2006 and 2008. (2 data files).

Context. The discovery of new massive star clusters and massive stellar populations in previously known clusters in our Galaxy by means of infrared studies has changed our view of the Milky Way from an inactive to an active star-forming machine. Within this scenario, we present a near-infrared spectrophotometric study of the stellar content of the