网站简介：News and feature articles (some free, some archived), space calendar, astronomy interactives, and book reviews.
网站简介：General club information, newsletter, equipment, library, facilities, and public programs located at Minneapolis.
网站简介：Galleries, newsletter, star party expeditions, film and video astrophotography, and events and announcements.
网站简介：Design and construction information and resources.
网站简介：Archive of world wide solar radiation and radiation balance data, 1964-1993.
网站简介：High quality Maksutov Catadioptric telescopes for astronomy, nature, science and surveillance applications. Entire product line features superior optical performance, machining and finish. Established in 1950.
网站简介：Amateur astronomy virtual observatory in Caracas, Venezuela. Includes information, images, and links. ARVAL is dedicated to propagating astronomical information since February '96. All of it is bilingual (Spanish - English), except for the 'Astronomía Caraqueña' section, which contains local astronomical information centered around Caracas, Venezuela. The section 'Astronomy for South Florida' is only available in English. The emphasis is on the wonder and beauty of astronomy. El sitio de ARVAL está dedicado a propagar información astronómica desde Febrero '96. Todo él es bilingüe (Castellano-Inglés), a excepción de la sección de "Astronomía Caraqueña", que contiene información local centrada alrededor de Caracas, Venezuela. La sección 'Astronomy for South Florida' está disponible sólo en Inglés. El énfasis está en lo maravilloso y la belleza de la astronomía.
网站简介：Events, facility information, membership information, articles, and astro images, observations and web links.
网站简介：Manufactures binoculars, spotting scope and telescopes, and offers OEM design and production services. Headquarters located in Kunming, China.
网站简介：The East Antrim Astronomical Society website is packed full of astronomical articles relating to current and recent astro events. The site is well organised with Members Astrophotography, recent news, astronomical history and club meeting reports.
网站简介：The format adopted by the astronomical community for data interchange and archival storage. Responsible for documenting the FITS standard, participating in its evolution, and advising NASA astrophysics missions on how to present their data in this type of format.
网站简介：Global project organized by the Arab Union for Astronomy and Space Sciences (AUASS). Contains data base for Crescent Observations.
网站简介：Images with information.
网站简介：Binocular and naked eye guide to the constellations, a data table, and mythology.
网站简介：A site devoted to helping amateur astronomers get more enjoyment out of their hobby. Includes advice on purchasing and using equipment as well as products.
网站简介：Information and articles on astronomy, space and related topics. Also features a friendly forum and a telescope buyer's FAQ page.
网站简介：Celestial navigation software with star finder, vetor chart and GPS interface. [Commercial, demo available. Windows]
网站简介：Organization providing enjoyment and education to the public for expert or amateur astronomer. Information about meeting, observing sites, resources and contacts.
网站简介：Manufacturers of a variety of night vision products including rifle scopes, Longbow day/night scopes, monoculars, binoculars, goggles and thermal imagers.
网站简介：A windows-based program with real time tracking of an unlimited number of satellites.
网站简介：Meeting information, newsletter, observing tips, photos, history, library, and documents.
网站简介：Personal homepage of cosmologist Max Tegmark (MIT). Includes useful material about the cosmic background radiation (movies and data analysis efforts), but also about the foundations of quantum mechanics.
网站简介：Our goal at SmartAstronomy is to provide you with the finest astronomy telescopes and accessories on the market today made from top manufactures world wide such as Meade Instruments, Celestron, Vixen Optics, and Kson Optical. We also specialize in the manufacture of our own name brand products to give you a large assortment of the highest quality optics made today. We officially launched SmartAstronomy in 2003 and are blessed by our success and prosperity. The founders of our company are astronomers, and know the needs of the industry which has helped us choose and design the right products for our customers. We have worked countless hours to find new and exciting products for all your astronomical needs. We are continually expanding our line while providing you with a 100% Satisfaction Guarantee. Please feel free to email or call us with your comments and suggestions to info@smartastronomy.com 888.291.6577 Thank You SmartAstronomy
网站简介：Offers news stories related environmental issues, archeology, astronomy, technology, geology and other science topics.
网站简介：Manufacturer of central surveillance control systems, CCTV, CCD cameras, DOME cameras, board cameras, box cameras and camera accessories exported to worldwide since 1988. ISO9001 certificated.