This page contains links to information about a couple observatories I've used and a couple other interesting ones. There are also links here useful for observing standard stars.
NASA Infrared Telescope Facility
Mauna Kea and its Telescopes
Wyoming Infrared
Observatory - check it out while you still can...
National Radio Astronomy Observatory
JPL Solar System Dynamics - A great
tool to get planetary ephemerides
in HTML format (Don't leave home without it!)
NASA ADS
Abstract Service
Simbad Query
Form u1398uri/pahwfmje
Bright infrared Standard Stars
Flux density for VEGA
The "Faint" Elias Standard Stars
RSI's Home Page - the creators of IDL
The IDL Astronomy User's
Library and its Contents
LANL IDL Home Page
JHU/APL/S1R
- this is stuff from Ray Sterner
Coyote's Guide to IDL Programming
by David Fanning - if there is a god of IDL, he's it; well, he and J. D.
Smith of Cornell University
IDL Software by David Windt
IRAF Support Services
Astronomy:
Software - archive of links to various programs