网站简介：Manufacturer of optical equipment based in Absam. Includes products, service, dealer locator, news, environmental projects and company profile.
网站简介：Provides a photographic map of the equatorial region of the satellite with pan and zoom capability, showing locations of the Apollo landings.
网站简介：The sky at a glance, highlights, sky chart, and gallery from Sky and Telescope Magazine.
网站简介：Several product lines of telescopes and accessories, eyepieces, CCD imaging equipment, astronomical software, spotting scopes, binoculars, and microscopes.
网站简介：Classified listings of used telescopes, accessories and observatories for sale.
网站简介：Information, news, resources, outreach programs, gallery, observing information, software, and newsletter and reports.
网站简介：Popular astronomy radio show presented by Neil deGrasse Tyson. Includes an episode archive and host biographies.
网站简介：Allows searches from the sources involved in this ESA - NASA project by setting observation period, wavelength, coordinates, objects and instrument.
网站简介：Conducts scientific research on Life in the Universe with an emphasis on SETI, the Search for Extraterrestrial Intelligence.
网站简介：Deep-sky astronomical photographs, tips and techniques for astrophotography, and digital enhancement in Photoshop.
网站简介：Publisher of Astronomy magazine and other astronomy products.
网站简介：Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools.
网站简介：Established 1899, AAS is the major professional organization in North America for astronomers, other scientists and individuals interested in astronomy.
网站简介：An astronomy query form.
网站简介：Largest variable star observers' organization in the world, serving amateur and professional astronomers since 1911 in Cambridge.
网站简介：Daily news, including images, movies and live launch webcasts on ESA's science missions.
网站简介：Chicago's Adler Planetarium and Astronomy Museum is a premier public resource for learning about astronomy discoveries and the history of the evolving conception of the Universe.
网站简介：The JWST is a large, infrared-optimized space telescope designed to study the formation of the first stars and galaxies, the evolution of galaxies and the production of elements by stars, and the process of star and planet formation.
网站简介：On-line retailer of a wide range of telescopes, microscopes, binoculars, spotting scopes and accessories for beginner, intermediate and advanced amateur astronomers, bird watchers and nature enthusiasts. Located in New Jersey.
网站简介：Includes academic programs, research, classes, space projects, faculty, staff, resources, outreach, early history, and job openings.
网站简介：Enables your computer to function as a virtual telescope, bringing together imagery from the best telescopes in the world.
网站简介：Resource for Binoculars and Spotting Scopes for Birding, Hunting, Nature, Sports, and Outdoor Recreation. See Complete Online Binocular Catalog and Buying Guide.
网站简介：Public information and education, and scientific user support.
网站简介：The SIMBAD astronomical database provides basic data, cross-identifications and bibliography for astronomical objects outside the solar system. SIMBAD can be queried by object name, coordinates, other criteria (filters), and lists of objects.
网站简介：Has available data from the Sun and near-Earth environment. Products and services include databases, images, posters, CD-ROMs and custom products.