A complete listing of the great many astronomy-related websites useful to observers is far beyond the scope of this page. What follows is a selection of those we've found most useful. For a much more comprehensive listing, we suggest the AstroWeb, a database of astronomy links maintained by the AstroWeb Consortium. (Weather links are listed separately.)

LITERATURE, CATALOGS, DATA, SURVEYS, TOOLS
	Astronomical Almanac VizieR SIMBAD, France SIMBAD, Harvard	NASA Space Science Data Coordinated Archive ADS Abstract Service ADS Article Service	DSS, STScI interface DSS, CADC interface NED	Ephemeris Generator UCSC Science Library

UNIVERSITY of CALIFORNIA ASTRONOMY		TOP
	Center for Adaptive Optics at UCSC LLNL Astrophysics LLNL Laser Guide Star/Adaptive Optics UCB Astronomy UCB Space Sciences Laboratory UCI Physics and Astronomy UCR Physics and Astronomy	UCLA Division of Astronomy and Astrophysics UCLA Infrared Imaging Detector Laboratory UCO / Lick Observatory UCSB Dept. of Physics UCSC Dept. of Astronomy and Astrophysics UCSD Center of Astrophysics & Space Sciences UCM Physic and Astronomy
	Institutes of Geophysics and Planetary Physics (IGPP's): UCLA | UCSC | UCSD | UCR

OBSERVATORIES					TOP
	AAO Armagh Apache Point Calar Alto CFHT Chabot DAO	DRAO ESO: La Silla ESO: Paranal Galileo Gemini Griffith HST	Isaac Newton Grp. Keck Las Campanas Lick Lowell Mauna Kea McDonald	Mount Graham Mount Wilson MMT NOIRLab: CTIO NOIRLab: KPNO NRAO	Palomar Subaru UKIRT Yerkes

OTHER ASTRONOMY LINKS			TOP
	AAS ARENA AURA ASP Caltech Astronomy Canadian Astronomy Data Centre CfA Challenger Center	ESA ESO Herzberg Institute IAU IDA IPAC MIRA NASA	NASA Goddard NOIRLab NSF SEDS SETI Sloan Digital Sky Survey STScI