Due to some maintenance routines the Afrho Data Base has been now locked. At this moment users are not able anymore to input data. Please take note that the currently available data are not updated and are currently under revision. 

The database will be completely restored as soon as possible. 

CARA stands for Cometary Archive for Amateur Astronomers.

If you would read our latest news, please select the link in the top menu.

In this site you can find data archives containing informations about comets and special attention is given to photometric and cometary dust measures.

Measures taken using photometric filters to select as better as possible the light reflected by the comet dust, are fundamental to obtain the Afrho value, largely used by professionals to study the comet coma.

During these years the CARA Project has contributed with to important missions:

• the Rosetta mission by ESA, producing images and useful measures to understand what environment the probe will encounter on comet 67P  Churyumov-Gerasimenko
• the Deep Impact mission by NASA/JPL, allowing a constant, extended and detailed monitoring on the behaviour of the comet 9P Tempel, before, during and after the impact of the probe on its surface. An important point was to verify that the comet's normal activity was not affected by the impact.