mirror site : http://www.geocities.ws/costeira1/cometa

Observation Program for 2025 (portuguese)

Until 30/Nov/2024 we have 11715 visual observations.

 Annual Report 2023 (portuguese)

Papers index (Newsletter Ouranos, in portuguese)

Report your observations (portuguese)

"... when a comet is discovered, there is no one who does not have a singular desire to register with his own eyes such a stupendous phenomenon, to know what it consists in, how it is formed." - José Monteiro da Rocha (1760).