| AstroNautilus: Homepage of a Polish language internet magazine about astronautics, available as a free download in Polish. |
| Borowiec Observatory: The Astrogeodynamic Observatory at Borowiec specializes in the geodynamic studies with the use of space techniques. The site contains information on research programs and facilities and history of the observatory. |
| Comets and Meteors Workshop: Co-ordinating observations of transient astronomical phenomena throughout Poland. |
| Institute of Astronomy, Wroclaw University: General information, staff, research, education, variable stars observations database, atlas of solar prominences |
| Jagiellonian University Astronomical Observatory: Information on current research projects, publications, staff and the observatory's history. Also a real-time graph of solar radio emissions at 10 frequencies in decimeter wavelengths refreshed every 10 minutes. |
| Mt. Suhora Astronomical Observatory: Mt. Suhora Observatory is part of the Astronomy Department of the Pedagogical University in Cracow specializing in the photometry of variable stars. Information about the observatory, its scientific output and some useful links. |
| Nicolaus Copernicus Museum in Frombork: Tourist information, facilities, section on Copernicus (biography, work, portraits). |
| Polish Amateur Astronomers Society, Torun Branch: Members, astronomy-related links. |
| Polish Amateur Astronomers Society, Warsaw Division: Regional branch of this national organization for amateur astronomers. Introduction in English, the rest of the site in Polish. Also astronomy-related links. |
| Polish Meteorite Service: Photographs and data about major Polish meteorites. |
| Poznan Astronomical Observatory: Scientific activities in the fields of astrometry, celestial mechanics and astrophysics. Site has news on some of its research projects, publications, teaching and links to astronomy-related resources online. |
| Torun Centre for Astronomy of the Nicolaus Copernicus University: Centre was created by a merger of Torun Radio Astronomy Observatory and Institute of Astronomy (optical telescopes). Its radio telescopes are part of the Very Long Baseline Interferometry global network. Real time updates on operations of its 32 m radio telescope. |
| Warsaw University Astronomical Observatory: Observatory's homepage; includes scientific results of The Optical Gravitational Lensing Experiment (OGLE) Project and The All Sky Automated Survey (ASAS) Project. |
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