Astronomy Clubs In Our Area

Astronomical Society of Eastern Missouri
Eastern Missouri Dark Sky Observers
Saint Louis Astronomical Society

General Astronomy

Astronomical and Space Calendar - CalSKY
Astronomical League Home Page
ECC - Heavens Above
Forums - ASTROMART
Forums - Cloudynights
Geomagnetic Declination calc
IAU: MPC
MPC Observable Comets
NASA Ephemeris Generator
Paul Wiegerts Web Page
Science -- Science Collections: Astronomy
SeeSat-L Home Page
Sky Maps - download
Sky View Cafe
SpaceWeather.com
Star Party Weather
The Astronomy Files
The National Deep Sky Observers Society
The Shallow Sky
The United States Naval Observatory
Time and Date rise/set
Universe Today

Astronomy Vendors

Adirondack Video Astronomy
Orion Telescopes & Accessories
Software Bisque Home Page
Willmann-Bell, Inc.
Astro Systems

Lunar Reference

António Cidadão's Lunar and Planetary Observation
Consolidated Lunar Atlas
Inconstant Moon
Lunar Dome Catalog
Moon Fact Sheet
NASA Lunar Eclipse Page

Occultations

North American Asteroidal Occultation Program

Optics

DayStar Filters
OWL Optic Wave Labratories
Galaxy Optics Home Page
H.L. Clausing Inc. Optical Coatings
Pegasus Optics - Telescope Mirrors
Spectrum Optic Coatings

Planets

Cassini Mission
Jupiter's GRS Transit Times
Jupiter's Moons
Saturn's Moons
Lunar and Planetary Institute (LPI)
Martian Moons
JPL Orbits
Planetary Satellite Mean Orbital Parameters

Reference

Historically Corrected NGC & IC
International Supernovae Network
JUPOS.org - Database for Object Positions on Jupiter
SEDS Messier Database, Indexes
SIMBAD database
Uppsala General Catalogue of Galaxies - Peter Nils

Satellites

Live Real Time Satellite Tracking
Visually Observing Satellites - Useful and Informative Sites
WinTrak and Traksat
Celestial Observer

Telescope Making

Argo Navis Digital Telescope Computer
BBAstroDesigns Edmund Scientific: Inspiring Science Exploratio...
FAQ about Collimating a Newtonian telescope
Mirror Cells for Amateur Telescope Makers
Newtonian Telescope
Optical Encoders, Inclinometers & Motion Control Components @ US Digital
Settingcircles_print
Sidereal Technology Dual Servo Telescope Contro...
Telescope Making - CrickRock Webrings
The ATM Site: Resources and Techniques for Amat...
WebRing:ScopeDrive