CAMK PAN

• CAMK Warsaw
• CAMK Toruń

Warsaw Astronomical Observatory

• website of Warsaw Astronomical Observatory
• OGLE project website
• ASAS project website
• Universe@Home

Archives, databases

• The Online Digitized Sky Survey
• ESO/ST-ECF Archive
• SIMBAD: Query by coordinates from SIMBAD database
• NASA’s Astrophysics Data System service (ADS)
• Astro-ph news on arXiv