LINKS IAU Commission 8 USNO CCD Astrograph Catalog ( UCAC ) JENAM 2001 Joint Discussion JD 3 on EUROPEAN ASTRONOMY WITH SMALL TELESCOPES Astronomische Gesellschaft The Operation of Medium Sized Telescopes in the 21st Century.
IAU Commission 8 USNO CCD Astrograph Catalog ( UCAC ) JENAM 2001 Joint Discussion JD 3 on EUROPEAN ASTRONOMY WITH SMALL TELESCOPES Astronomische Gesellschaft The Operation of Medium Sized Telescopes in the 21st Century.
