IAUC 5879 available at Central Bureau for Astronomical Telegrams. IAUC 5879 available at Central Bureau for Astronomical Telegrams.

In the context of the EPOXI mission, at the beginning of November 2010 the comet 103P/Hartley 2 was visited by the Deep-Impact spacecraft, that passed at only 700 km from its nucleus. To connect spatial small scales, as seen from the spacecraft, to large ones, the comet was the target of a wide campaign of remote observations involving many

We present ground-based optical observations of the 2009 September and 2010 January transits of HD 80606b. Based on three partial light curves of the 2009 September event, we derive a midtransit time of Tc [HJD] = 2455099.196 ± 0.026, which is about 1σ away from the previously predicted time. We observed the 2010 January event from nine different

The known β Cephei star HD 180 642 was observed by the CoRoT satellite in 2007. From the very high-precision light curve, its pulsation frequency spectrum could be derived for the first time (Degroote and collaborators). In this paper, we obtain additional constraints for forthcoming asteroseismic modeling of the target. Our results are based on

The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d'être arises from the much higher spatial resolution of common ground-based telescopes in comparison to CoRoT's cameras. This allows the identification of many transit candidates

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