Finding Your Way in the Cosmos Indy's Astronomy Glossary Basic astronomical terms are explained to help you understand a little bit about the night sky. How do astronomers know when and where to find an object on the celestial sphere? Right Ascension, Declination, Celestial Sphere, Proper Motion, Precession, Magnitude, Identity, Kelvin, Spectral Class, Sidereal Time, Solar Time, Universal Time, Astronomical Units, Light Years.

Info on Constellations, Stars, Meteors, etc. Indy's Object Catalog - Catalog Index While it is certainly not meant to be a complete reference, my object catalog is a small collection of data about some of the most familiar sky objects. Maybe you will find it interesting enough so you will want to learn more about astronomy. 100 Bright Objects, Simple Sky Charts, 89 Constellations, Order of Ascension, 11 Solar System Objects, 49 Meteor Showers, 110 Messier Catalog Objects, 39 Periodic Comets, 60 Navigation Stars, 405 Deep Sky Objects, 253 Named Stars, etc.

Astronomy Software Sidereal Clock Javascript
Astronomers use local sidereal time because it corresponds to the coordinate right ascension of a celestial body that is presently on the local meridian. In simpler words, local star time. Please see my Glossary for a more detailed explanation of sidereal time. This Free Javascript gets the current UTC time from your computer and calculates the Greenwich Mean Sidereal Time (GMST), and then adds an offset in longitude to compute Local Sidereal Time (LST). To use it, all you need to do is set your local longitude. Click on the link above to test drive this javascript and view the source code.

Open Cluster Type "C" in Taurus
The Pleiades Cluster - M45
Famous naked eye cluster also known as "The Seven Sisters"; Alcyone, Electra, Maia, Mereope, Taygeta, Celaeno, and Sterope. More...

Which Way to The Galactic Core?
The Heart of The Milky Way If you are lucky enough to be somewhere where you can actually see the Milky Way, this page will point you in the right direction.

Just a Nice Photo
Mz3 - The Ant Nebula

Astronomy Links
Your Sky Mount Wilson Observatory
AstroWeb: Astronomy resources on the Internet Kitt Peak National Observatory
Hubble Heritage Project: Astronomy Palomar Observatory: Public Site
The STScI Digitized Sky Survey Lowell Observatory Home Page
NASA Jet Propulsion Laboratory Griffith Observatory Home Page
U.S. Naval Observatory Sidereal Time Calculator Palomar Observatory: Observers' Site
Animations and Logos!