网站简介：Information on the meter-wave aperture synthesis radio, multi-channel solar magnetic field, mark-III photoelectric astrolabe, 60/90cm Schmidt, 1.26m infrared, 2.16m optical, 7M solar radio, 85cm reflector, and 60cm reflector telescopes.
网站简介：Contains new and used telescopes and accessories.
网站简介：Offers a range of telescopes, binoculars and accessories. Company profile, products, careers, events, photographs, and contacts.
网站简介：Astronomical site including articles about the universe, galaxies, stars, planets and biographies of astronomers. Multilingual.
网站简介：Offers access to professional telescopes worldwide for observations made by school children and teachers. Includes sections for teachers and young observers.
网站简介：Detailed explanations and information about observing and photographing both solar and lunar eclipses.
网站简介：Protocols for naming planetary features, by the Working Group for Planetary System Nomenclature of the International Astronomical Union.
网站简介：Manufacturer of short tube refractor telescopes, binoculars, digital camera adapter lenses for telescopes, eyepieces, diagonals and other accessories.
网站简介：Includes launches, landings, sightings, new projects, scientific discoveries, commercial applications and major announcements.
网站简介：Astronomical cameras ranging from entry to professional, from CMOS to CCD, specially made for amateur astronomers worldwide.
网站简介：Provides an overview of ufology.
网站简介：Beginners advice, classifieds, observation tips, diary, and bulletins.
网站简介：Dealer for several brands of telescopes, binoculars, eyepieces and accessories. Offering product overview, reports, and suppliers directory.
网站简介：Information about ongoing research, academic programs, affiliated organizations, and resources available to researchers in whole organism biology.
网站简介：Online retailer of telescopes, binoculars, eyepieces, and a wide range of astronomy accessories. Product lines include Antares, Baader Planetarium, GSO, Meade and William Optics. Located in California (United States).
网站简介：The menu is appetizers, specials, and main course.
网站简介：Research into high-energy nuclear physics, gravity-wave detection, the structure of the universe and group theory.
网站简介：General information, research, events, facility information, education, news, and links.
网站简介：Manufactures microscopic, telescopic, spectroscopic and fiber endoscopic instrumentation and subsystems for astronomic, measurement and analysis, medical, laboratory applications.
网站简介：Bring outer space online with the BBC Online's guide to astronomy
网站简介：Basic introduction to modern cosmology, aimed at a general audience. This NASA site is part of the outreach efforts for the WMAP space probe, which measures an "Echo of the Big Bang": the cosmic microwave background radiation.
网站简介：Research, education and outreach, mission, star tales, and links.
网站简介：Premium refractor telescopes, eyepieces, and accessories. Products include Nagler eyepieces, Panoptic eyepieces, Radian eyepieces, Plossl eyepieces, Barlows, Powermate, Ranger, 101, fluorite and apochromatic refractors.
网站简介：Facilities and equipment information, images, library, and research opportunities.
网站简介：Consortium of educational and other non-profit institutions that operates world-class astronomical observatories.