- Name A Star - The Perfect Gift
We have named over 1,000,000 stars. This is a Perfect and unique gift.
Amature Astronomy, Homemade Observatory, Astro-images
Lumicon - The World's Best Filters and Astronomical Accessories
Lumicon International offers you the best and most extensive line of astronomical filters in the world. Filters for every imagined visual and astrophotographic application, in many configurations and sizes. Filters for deep sky objects, galaxies, nebulae, planets, planetary nebulae, light polluted skies, comets, and solar prominences. All UHC, Deep Sky, OIII and H-Beta filters are individually inspected and tested on a Perkin-Elmer Double-Beam Spectrophotometer. We proudly inscribe the % of transmission for each of the primary lines. In addition to the world's best filters, Lumicon proudly offers you the most unique patented and useful accessories, including the world-famous series of Easy Guiders, Richfield Viewers, Sky Vectors, diagonals, finderscopes, illuminated reticles, guiding eyepieces, Binoviewers, and visual and astrophotographic accessories. Lumicon also exclusively offers you hypered films and hyper kits.
The Constellations since 1996
Binocular and naked eye guide to the constellations, a data table, and mythology.
Buying a Star
FAQ from sci.astro.amateur newsgroup.
MSN Learning & Research Plus: Brown Dwarf
Online encyclopedia article.
The Formation of Binary Stars
Recent observational investigations of the frequency of occurrence of pre-main-sequence binary stars have reinforced earlier suspicions that binary formation is the primary branch of the star-formation process
Windows to the Universe: Neutron Stars
A typical neutron star is the size of a small city, but it may have the mass of as many as three suns.