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On-line Store with wide selection of brand name binoculars, monoculars, telescopes, spotting scopes, rifle scopes, opera glasses, laser sights, range finders, and night vision equipment. Located in Illinois.

Suppliers of astronomical accessories, binocular viewers, eyepieces, binoculars, telescope building supplies, software, books, and components to build a "Cookbook" CCD camera.

Research-grade, observatory class telescope systems for professional and discriminating amateur astronomers, plus custom designed instrumentation for specific needs.

Economically priced beginner telescope kits which are suitable for children six years and older or as a family project. Accessories, eyepieces, Baader Solar Filter material and completed telescopes are also available.

Produces the Losmandy product line of precision equatorial mounts, dovetail systems, the Gemini goto control system and a variety of telescope accessories.

Versa-Port Sliders, Monster focusers, bifilar micrometers and turret eyepiece holders.

English manufacturer of filter wheels, flip mirrors, filter units and dichroic filters.

Manufactures the I 3 eyepiece visual image intensifier system which features TeleVue optics, and an optional CCD video adapter for real time display.

Optical instrument mounts including the T-Mount, UniMount and UniStar for binoculars and telescopes. Retailer for a variety of other product lines.

Accessories for astrophotography including the Universal Camera Mounting Adapter for attaching cameras/telephoto lenses to telescopes, the XY Finder for guide scopes and CCD guide cameras, plus the Flip-Mirror Focuser for CCD cameras located at the telescope's prime focus.

British manufacturer of a wide range of astronomical telescope accessories and astronomy related accessories including the GigaWedge and GigaPier for Meade 16" LX-200 scopes.

Offers custom optics fabrication, design consulting and optical testing services for the scientific, industrial and astronomical communities.

Chinese manufacturer and exporter of binoculars, telescopes, monoculars, golfscopes and spotting scopes.

Concessionaire of coin-operated viewing machines, since 1973. Products include American-made coin-operated binoculars and telescopes.

Worm gear drives for the accurate tracking of deep space and planetary objects for viewing and imaging. Stepper and synchronous motor power systems are available.

18" to 25" Newtonian optics for amateurs and scientists. Also makes diagonals and offers mirror testing, refiguring and coating services.

Korean manufacturer of thermal imaging systems, military fire control equipment, night vision viewers and telescopes, military low vision binoculars and optics, and daytime periscopes, optical modules and parts.

Manufacturer, retailer and distributor of telescopes and related astronomy accessories.

Belgian manufacturer of binoculars, telescopes and accessories. Professional optics for birding and outdoor activities.

Manufacturer of Dobsonian telescopes ranging from 12-1/2" to 30" in aperture. Optional accessories include the ServoCAT servo drive system which may be combined with the Argo Navis digital setting circles.

Telescope control systems and Argo Navis digital setting circles for Dobsonians and equatorially mounted telescopes.

Manufacturer of telescopes, spotting scopes, accessories, binoculars and optics, and distributor of Meade, Celestron and Televue equipment.

Manufacturer in Japan of a varied selection of telescopes, mounts, binoculars and spotting scopes.

Manufacturers of hunting optics for rifles and airguns. Includes a list of retailers, product specifics and a mailing list.

Manufacturer and distributor of Sky-Watcher refractors, reflectors, dobsonians, catadioptrics, spotting scopes, binoculars, mounts, eyepieces, motor drives and finderscopes.

This is a digital sky map software which demonstrate the universe in solar space mode, equator mode, and horizon mode. You can view the whole solar system, look at any of the planets nearly, see the whole sky as standing at anywhere on the earth.

A free project repository for [semi-]open astronomical software.

Planetarium with orrery, and animation. Commercial, demo available - Win95/98/Me/NT/2000/XP.

Auriga Imaging's program RegiStar automatically registers (aligns) astrophotos -- no user intervention required.

[shareware - Win 98/ME/2K/XP] A 3D software planetarium. Photo realistic real-time 3D renderings of 2 million stars, galaxies, nebulae, and the Milky Way. Includes several educative tutorials.